The Watson-Glaser Critical Thinking Appraisal Test is one of the oldest, most frequently used, multiple-choice critical-thinking tests on the market in business, government, and legal settings for purposes of hiring and promotion. I demonstrate, however, that the test has serious construct-validity issues, stemming primarily from its ambiguous, unclear, misleading, and sometimes mysterious instructions, which have remained unaltered for decades. Erroneously scored items further diminish the test’s validity. As a result, (...) having enhanced knowledge of formal and informal logic could well result in test subjects receiving lower scores on the test. That’s not how things should work for a CT assessment test. (shrink)

'You shouldn't drink too much. The Earth is round. Milk is good for your bones.' Are any of these claims true? How can you tell? Can you ever be certain you are right? For anyone tackling philosophical logic and critical thinking for the first time, Critical Thinking: An Introduction to Reasoning Well provides a practical guide to the skills required to think critically. From the basics of good reasoning to the difference between claims, evidence and arguments, (...) Robert Arp and Jamie Carlin Watson cover the topics found in an introductory course. Now revised and fully updated, this Second Edition features a glossary, chapter summaries, more student-friendly exercises, study questions, diagrams, and suggestions for further reading. Topics include: the structure, formation, analysis and recognition of arguments deductive validity and soundness inductive strength and cogency inference to the best explanation truth tables tools for argument assessment informal and formal fallacies With real life examples, advice on graduate school entrance exams and an expanded companion website packed with additional exercises, an answer key and help with real life examples, this easy-to-follow introduction is a complete beginner's tool set to good reasoning, analyzing and arguing. Ideal for students in basic reasoning courses and students preparing for graduate school. (shrink)

This text introduces university students to the philosophical ethos of critical thinking, as well as to the essential skills required to practice it. The authors believe that Critical Thinking should engage students with issues of broader philosophical interest while they develop their skills in reasoning and argumentation. The text is informed throughout by philosophical theory concerning argument and communication—from Aristotle's recognition of the importance of evaluating argument in terms of its purpose to Habermas's developing of the (...) concept of communicative rationality. The authors' treatment of the topic is also sensitive to the importance of language and of situation in shaping arguments, and to the necessity in argument of some interplay between reason and emotion. Unlike many other texts in this area, then, Good Reasons for Better Arguments helps to explain both why argument is important and how the social role of argument plays an important part in determining what counts as a good argument. If this text is distinctive in the extent to which it deals with the theory and the values of critical thinking, it is also noteworthy for the thorough grounding it provides in the skills of deductive and inductive reasoning; the authors present the reader with useful tools for the interpretation, evaluation and construction of arguments. A particular feature is the inclusion of a wide range of exercises, rich with examples that illuminate the practice of argument for the student. Many of the exercises are self testing, with answers provided at the back of the text; others are appropriate for in-class discussion and assignments. Challenging yet accessible, Good Reasons for Better Arguments brings a fresh perspective to an essential subject. (shrink)

This study describes the methodology used by Marcos Y. Lopez of the Centro Escolar University in developing and validating The CEU-Lopez Critical Thinking Test. The test is a multi-aspect general-knowledge critical thinking test designed for Filipino students in tertiary level. It uses Ennis’s conception of critical thinking in the development of test items. The use of verbal reports of thinking to establish validity and fairness of multiple-choice critical (...) class='Hi'>thinking test is based on the study by Norris in validating his co-authored Test on Appraising Observations. Verbal reports of thinking are useful in establishing validity and fairness of multiple-choice critical thinking tests for they provide evidence to judge whether good thinking is in general associated with choosing answers credited by the key as correct and poor thinking is associated with choosing unkeyed answers . The eight processes employed in developing and validating this multiple-choice critical thinking test are as follows: test conceptualization, development of a test plan, development of test items, face and content validation of the test, revision of the test items, pre try-out of the test, actual try-out of the test, and construct validation of the test using verbal reports of thinking. The CEU-Lopez Critical Thinking Test consists of 87 items that focus on five aspects of critical thinking: deduction, credibility judgment, assumption identification, induction, and meaning. (shrink)

After determining one set of skills that we hoped our students were learning in the introductory philosophy class at Carnegie Mellon University, we performed an experiment twice over the course of two semesters to test whether they were actually learning these skills. In addition, there were four different lectures of this course in the first semester, and five in the second; in each semester students in some lectures were taught the material using argument diagrams as a tool to aid (...) understanding and critical evaluation, while the other students were taught using more traditional methods. In each lecture, the students were given a pre-test at the beginning of the semester, and a structurally identical post-test at the end. We determined that the students did develop the skills in which we were interested over the course of the semester. We also determined that the students who were taught argument diagramming gained significantly more than the students who were not. We conclude that learning how to construct argument diagrams significantly improves a student’s ability to analyze arguments. (shrink)

A number of single- and dual-process theories provide competing explanations as to how reasoners evaluate conditional arguments. Some of these theories are typically linked to different instructions—namely deductive and inductive instructions. To assess whether responses under both instructions can be explained by a single process, or if they reflect two modes of conditional reasoning, we re-analysed four experiments that used both deductive and inductive instructions for conditional inference tasks. Our re-analysis provided evidence consistent with a single (...) process. In two new experiments we established a double dissociation of deductive and inductive instructions when validity and plausibility of conditional problems were pitted against each other. This indicates that at least two processes contribute to conditional reasoning. We conclude that single-process theories of conditional reasoning cannot explain the observed results. Theories that postulate at least two processes are needed to account for our findings. (shrink)

This book covers all the material typically addressed in first or second-year college courses in Critical Thinking: Chapter 1: Critical Thinking 1.1 What is critical thinking? 1.2 What is critical thinking not? Chapter 2: The Nature of Argument 2.1 Recognizing an Argument 2.2 Circular Arguments 2.3 Counterarguments 2.4 The Burden of Proof 2.5 Facts and Opinions 2.6 Deductive and Inductive Argument Chapter 3: The Structure of Argument 3.1 Convergent, Single 3.2 (...) Convergent, Multiple 3.3 Divergent Chapter 4: Relevance 4.1 Relevance 4.2 Errors of Relevance Chapter 5: Language 5.1 Clarity 5.2 Neutrality 5.3 Definition Chapter 6: Truth and Acceptability 6.1 How do we define truth? 6.2 How do we discover truth? 6.3 How do we evaluate claims of truth? Chapter 7: Generalizations, Analogies, and General Principles 7.1 Sufficiency 7.2 Generalizations 7.3 Analogies 7.4 General Principles Chapter 8: Inductive Argument – Causal Reasoning 8.1 Causation 8.2 Explanations 8.3 Predictions, Plans, and Policies 8.4 Errors in Causal Reasoning (Three additional chapters – categorical logic, propositional logic, thinking critically about ethics – are available on the companion website.) -/- Special Features: -/- - The book takes a practice approach to learning how to think critically, so there are LOTS of exercises (within each chapter, focusing on discrete skills, and at the end of each chapter, focusing on more global skills in a cumulative fashion – thinking critically about what one sees, hears, reads, writes, and discusses). -/- - There is an extensive “Answers, Explanations, and Analyses” section that provides not just ‘the right answer’ but explanations as to why the right answer is right and why wrong answers are wrong; when the exercise is not a matter of providing an answer but of analyzing material, a detailed analysis is provided in this section; this feature is intended to help the student fully understand why some arguments are better than others (and why it’s not ‘just a matter of opinion’!). -/- - The regularly-appearing end-of-chapter “Thinking critically when you discuss” exercise is carefully graduated throughout the text, to gently lead students from sounding like a bad tv talk show to being able to hold an intelligent discussion. -/- - The regularly-appearing end-of-chapter “Thinking critically about what you write” exercise assumes almost no skill at the beginning and leads up to, in the last chapter, writing a 2,000 word position paper. -/- - A critical analysis template (a step-by-step approach to critical analysis) is presented in the first chapter and at the beginning of each subsequent chapter, and specific reference to it is made at the beginning of each end-of-chapter “Thinking critically about what you read” exercise (consisting of ten bits of increasing difficulty); this feature is intended to encourage the development of habitual, thorough analysis of arguments. -/- - Actual questions from standardized reasoning tests like the LSAT, GMAT, MCAT, and GRE are included. -/- - Ancillaries include an instructor’s manual; a test bank; PowerPoint slides; downloadable MP3 study guides; and interactive flash cards. (shrink)

Critical Thinking is a comprehensive and accessible introduction to the essential skills required to make strong arguments. The authors provide a thorough treatment of such topics as deductive and inductive reasoning, logical fallacies, the importance of inference, how to recognize and avoid ambiguity, and how to assess what is or is not relevant to an argument. This seventh edition adds a chapter on legal reasoning, and grants access to a substantial website of additional questions and other (...) interactive resources. (shrink)

"William Hughes's Critical Thinking, recently revised and updated by Jonathan Lavery, is a comprehensive and accessible introduction to the essential skills required to make strong arguments. Hughes and Lavery give a thorough treatment of such traditional topics as deductive and inductive reasoning, logical fallacies and how to spot them, the importance of inference, how to recognise and avoid ambiguity, and how to assess what is or is not relevant to an argument. But they also cover a (...) variety of topics not always treated in books of this sort - special concerns to keep in mind when reasoning about ethical matters and how the nature of a language can affect the structure of an argument. The book gives a lucid treatment of the differences between descriptive and evaluative meaning: one person's freedom fighter is another person's terrorist." "For the fourth edition, Jonathan Lavery has added a new chapter on scientific reasoning, expanded the treatment of analogies, added numerous examples, and revised and updated the text throughout."--BOOK JACKET.Title Summary field provided by Blackwell North America, Inc. All Rights Reserved. (shrink)

William Hughes's Critical Thinking, revised and updated by Jonathan Lavery, is a comprehensive and accessible introduction to the essential skills required to make strong arguments. Hughes and Lavery give a thorough treatment of such traditional topics as deductive and inductive reasoning, logical fallacies, the importance of inference, how to recognize and avoid ambiguity, and how to assess what is or is not relevant to an argument. The authors also cover less traditional topics such as special concerns (...) to keep in mind when reasoning about ethical matters, and how the nature of a language can affect the structure of an argument. In addition to covering basic concepts for analyzing and assessing arguments, the text also has two chapters that are designed to help students write argumentative essays. Last but not least, Critical Thinking includes a selection of logical paradoxes and puzzles that are as entertaining as they are enlightening. For the fifth edition particular attention has been paid to the needs of Canadian students and instructors. (shrink)

William Hughes's Critical Thinking, recently revised and updated by Jonathan Lavery and Katheryn Doran, is a comprehensive and accessible introduction to the essential skills required to make strong arguments. Hughes, Lavery, and Doran give a thorough treatment of such traditional topics as deductive and inductive reasoning, logical fallacies, the importance of inference, how to recognize and avoid ambiguity, and how to assess what is or is not relevant to an argument. The authors also cover less traditional (...) topics such as special concerns to keep in mind when reasoning about ethical matters, and how the nature of a language can affect the structure of an argument. In addition to covering basic concepts for analyzing and assessing arguments, the text also has two chapters that are designed to help students write argumentative essays. Last but not least, Critical Thinking includes a selection of logical paradoxes and puzzles that are as entertaining as they are enlightening. For the sixth edition particular attention has been paid to the needs of American students and instructors. (shrink)

The CAT is entirely dedicated to assessing the critical-thinking skills involved in scientific reasoning and practical problem solving. While the test is found to have reasonable content validity, various issues with its prompts are discussed, along with significant issues with its scoring. The CAT’s recommended use as a “model” for curricular changes, called CAT Apps, is criticized as “teaching to the test.”.

Learn to think critically with the leading introduction to reasoning and argumentation. Highlights In clear, reader-friendly language, The Power of Critical Thinking provides an engaging introduction to argumentation, deductive and inductive reasoning, inferencing, and evaluating scientific theories New Critical Thinking and the Media boxes in each chapter apply the principles of critical thinking to the realms of media, advertising, and news New content on "fake news," the COVID-19 pandemic, and other important (...) contemporary topics reflects the changing world in which today's students must apply their critical thinking abilities New and updated exercises offer extensive opportunities for students to practise the skills through which they will become active, engaged critical thinkers Additional online resources-including a study guide and practice quizzes for students as well as an instructor's manual, a test bank, and PowerPoint slides for instructors-offer stimulating materials to enhance the learning and teaching experiences. About the Authors Chris MacDonald is an associate professor and chair of the Law and Business Department at the Ted Rogers School of Management, Toronto Metropolitan University. Lewis Vaughn is an independent scholar and author of several textbooks on philosophy, ethics, and critical thinking. (shrink)

Learn to think critically with the leading introduction to reasoning and argumentation. Highlights In clear, reader-friendly language, The Power of Critical Thinking provides an engaging introduction to argumentation, deductive and inductive reasoning, inferencing, and evaluating scientific theories New Critical Thinking and the Media boxes in each chapter apply the principles of critical thinking to the realms of media, advertising, and news New content on "fake news," the COVID-19 pandemic, and other important (...) contemporary topics reflects the changing world in which today's students must apply their critical thinking abilities New and updated exercises offer extensive opportunities for students to practise the skills through which they will become active, engaged critical thinkers Additional online resources-including a study guide and practice quizzes for students as well as an instructor's manual, a test bank, and PowerPoint slides for instructors-offer stimulating materials to enhance the learning and teaching experiences. About the Authors Chris MacDonald is an associate professor and chair of the Law and Business Department at the Ted Rogers School of Management, Toronto Metropolitan University. Lewis Vaughn is an independent scholar and author of several textbooks on philosophy, ethics, and critical thinking. (shrink)

Critical Thinking: An Introduction to Analytical Reading and Reasoning, Second Edition, provides a nontechnical vocabulary and analytic apparatus that guide students in identifying and articulating the central patterns found in reasoning and in expository writing more generally. Understanding these patterns of reasoning helps students to better analyze, evaluate, and construct arguments and to more easily comprehend the full range of everyday arguments found in ordinary journalism. Critical Thinking, Second Edition, distinguishes itself from other texts in (...) the field by emphasizing analytical reading as an essential skill. It also provides detailed coverage of argument analysis, diagnostic arguments, diagnostic patterns, and fallacies. Opening with two chapters on analytical reading that help students recognize what makes reasoning explicitly different from other expository activities, the text then presents an interrogative model of argument to guide them in the analysis and evaluation of reasoning. This model allows a detailed articulation of "inference to the best explanation" and gives students a view of the pervasiveness of this form of reasoning. The author demonstrates how many common argument types--from correlations to sampling--can be analyzed using this articulated form. He then extends the model to deal with several predictive and normative arguments and to display the value of the fallacy vocabulary. Ideal for introductory courses in critical thinking, critical reasoning, informal logic, and inductive reasoning, Critical Thinking, Second Edition, features hundreds of exercises throughout and includes worked-out solutions and additional exercises at the end of each chapter. An Instructor's Manual--offering solutions to the text's unanswered exercises and featuring other pedagogical aids--is available on the book's Companion Website at www.oup.com/us/wright. (shrink)

Critical Thinking Critical Thinking is the process of using and assessing reasons to evaluate statements, assumptions, and arguments in ordinary situations. The goal of this process is to help us have good beliefs, where “good” means that our beliefs meet certain goals of thought, such as truth, usefulness, or rationality. Critical thinking is widely regarded … Continue reading Critical Thinking →.

This print edition of Read's account of logical thought includes the original publication's diagrams and tables. In this excellent book, Read commences by offering an overview of past attitudes and definitions of logic. Individual chapters consider the various means by which logical processes are conceived and developed in the mind. Philosophical arguments, spatial reasoning and mathematical forms of logic are discussed in great depth, with illustrations appended where deemed necessary. Read, an academic and philosopher, employs his decades long experience of (...) teaching students about the logical disciplines to write a detailed and comprehensive accounts of logic's aspects. Throughout this work, he attempts to retain a clarity of expression which makes the concepts discussed understandable for readers previously unversed in the types of logical expression. Read also sets out the principles behind setting up a hypothesis, and highlights the common logical fallacies which crop up in human reasoning. Extensive attention is given to the process of syllogism, by which sound conclusions are drawn from the premises offered. Throughout the book, Read is attentive in defining and explaining the esoteric terminology native to logic. As well as allowing the reader swift comprehension of the various subtopics, this explanatory style confers improved flow to the book. At the conclusion we are offered many questions corresponding to each chapter: these are intended to test the reader's understanding, and enforce the mental habits of utilising logical and critical thought. First published in 1898 and subject to several editions with revisions and refinements thereafter, Logic Deductive and Inductive retains a good reputation among academics and logicians. Its successful balance between striking a concise introductory tone with an embrace of the core elements of the subject has served to preserve its popularity into the modern day. (shrink)

This robust, clear, and well-researched textbook for classes in logic introduces students to both formal logic and to the virtues of intellectual inquiry. Part 1 challenges students to develop the analytical skills of deductive and inductive reasoning, showing them how to identify and evaluate arguments. Part 2 helps students develop the intellectual virtues of the wise inquirer. The book includes helpful pedagogical features such as practice exercises and a concluding summary with definitions of key concepts for each chapter. (...) Resources for professors and students are available through Baker Academic's Textbook eSources. (shrink)

Designed for students with no prior training in logic, INTRODUCTION TO LOGIC AND CRITICAL THINKING offers an accessible treatment of logic that enhances understanding of reasoning in everyday life. The text begins with an introduction to arguments. After some linguistic preliminaries, the text presents a detailed analysis of inductive reasoning and associated fallacies. This order of presentation helps to motivate the use of formal methods in the subsequent sections on deductive logic and fallacies. Lively and straightforward (...) prose assists students in gaining facility with the sometimes challenging concepts of logic. By combining a sensitive treatment of ordinary language arguments with a simple but rigorous exposition of basic principles of logic, the text develops students' understanding of the relationships between logic and language, and strengthens their skills in critical thinking. Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version. (shrink)

This paper explores Locke’s thinking specifically about syllogisms and more generally about logic and proper logical method. Locke’s texts display a mixed attitude toward syllogisms. On the one hand, he was highly critical of syllogisms and their central role in Scholastic disputation. On the other hand, he sometimes allowed that syllogisms could effectively capture valid forms of inference and could be useful in certain contexts. This paper seeks to explain Locke’s mixed attitude by showing that he believed syllogisms (...) were useful in the context of explanation but not in the context of discovery. Syllogisms could help to formalize and evaluate arguments already constructed using informal psychologistic methods, but they would not help to generate new arguments or to make new discoveries. The second part of the paper examines substantial changes to the fourth edition of the Essay in which Locke expands his critical remarks on syllogisms and related topics. Evidence is presented that strongly suggests Locke made these changes to the Essay in response to works published by John Sergeant. This discovery is important because it indicates Locke’s willingness to consider the views of his adversaries and reformulate his own views accordingly. (shrink)

Lively, comprehensive, and contemporary, The Voice of Reason: Fundamentals of Critical Thinking covers three principal areas: thought and language, systematic reasoning, and modes of proof. It employs highly accessible explanations and a multitude of examples drawn from social issues and various academic fields, showing students and other readers how to construct and criticize arguments using the techniques of sound reasoning. The Voice of Reason examines the traditional elements of the field and also explores new ground. The first (...) section of the book elucidates the relationship between thought and language, explaining how words function. It discusses meaning, connotation, vagueness, ambiguity, and definition, identifying the linguistic elements that can produce mistakes in thinking. The next section describes the rules of systematic reasoning, examining such topics as truth, relevance, and adequacy; deductive logic (categorical, hypothetical, and disjunctive); and induction (cause and effect, analogy, generalization, and hypothesis). Sixteen fallacies in thinking are also described through extensive illustrations and applications. The final section of the book offers a unique study of what constitutes proof in several different areas--including politics, advertising, law, and social issues--as well as in the academic disciplines of literature, science, history, and ethics. The author describes the various rules of evidence, using essays by major figures in each field as examples. An ideal text for courses in critical thinking, informal logic, and reasoning and writing, The Voice of Reason offers numerous pedagogical features including a host of examples; assignments, exercises, and puzzles at both the halfway point and at the end of each chapter; cartoons and quotations throughout; and practical applications of theoretical concepts. An extensive Instructor's Manual contains answers to the exercises that appear throughout the text. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Journal of the History of Philosophy 41.3 (2003) 415-416 [Access article in PDF] Tad M. Schmaltz. Radical Cartesianism: The French Reception of Descartes. Cambridge: Cambridge University Press, 2002. Pp. xiv + 288. Cloth, $65.00.More than fifty years ago Richard H. Popkin urged historians of philosophy to work on secondary figures in philosophy, in part for their own sake, but also because the true shape of philosophy and the (...) development of major figures can be understood only through examination of the intellectual milieu out of which they arose. Among others he specifically mentioned Robert Desgabets, Jean Du Hamel, Simon Foucher, Pierre-Daniel Huet, Pierre-Sylvain Regis, and Henricus Regius. Now in Radical Cartesianism, Tad Schmaltz has provided a masterful and erudite study of these and other philosophers who are minor now but were major in their day. The importance of this study is not just that it illuminates the metaphysics of Descartes, Spinoza, and Malebranche, and clarifies the relationship of these philosophers to Arnauld, Jansenism, Plato, and the Aristotelian scholasticism of the day, but also that it opens to view an intricate and significant body of thought. The radical Cartesianism Schmaltz examines addresses and provides solutions to problems of the relationship between mind and body, between man and God, and between ideas and the external world that continue to engage philosophers today. Schmaltz concludes his study with the suggestion that these philosophers might have had more latter-day influence if larger historical events, in particular the death of Louis XIV and the subsequent relaxation of attacks on Jansenism (and on supposed Jansenist Cartesianism) had not led to interest in matters other than the Eucharist and the nature of the soul that were major issues among the radical Cartesians and their opponents.But were any of these radical Cartesians actually Cartesians? If, as Schmaltz says, the metaphysical core of Cartesianism is Descartes's doctrine that "the essence of body consists in extension and that the essence of mind consists in thought" (10), then most of his followers were not radical Cartesians, but rather heretical Cartesians. They rebelled against as many of Descartes's doctrines as they accepted. Schmaltz's careful expositions, analyses, comparisons, correlations, and extrapolations of their arguments and positions make up the bulk of his book. The detail, command of the material, insight, and breadth of Schmaltz's exposition is on an order of magnitude above previous work on these figures and will stand for a long time as a challenge to the next few generations of scholars.But if so many of these figures alter Descartes's metaphysics so radically, why do they still designate themselves as Cartesians? The major reason is that while Cartesian metaphysics was in disarray, Cartesian science was flourishing. Regius is the model. He said (directly to Descartes) that metaphysics is inessential to science, that matters of God and certainty about the existence of the external world could and should be left to faith. What was liberating during the third quarter of the century in The Netherlands and in the fourth quarter in France was Descartes's scientific method of posing hypotheses and testing them with experiments. You will never get certainty this way, but already science was advancing by leaps and bounds. Christian Huygens, who as a boy had known Descartes, belittled the man's metaphysics, but was one of the greatest and most successful practitioners of the [End Page 415] Cartesian scientific method of his time. What remains to be written is a study of late-seventeenth-century Cartesian science that is as excellent and comprehensive as Schmaltz's study of the Cartesian metaphysics of the time. Here are some problems Descartes set up that are of particular concern to the philosophers of the time. If God can do anything, even make contradictions true, then why could he not make you think you exist even when you do not? How could you think of something that does not exist? Because your thoughts have a temporal dimension, and time depends on motion, and motion pertains only to material bodies, how could you... (shrink)

Lively, comprehensive, and contemporary, The Voice of Reason: Fundamentals of Critical Thinking covers three principal areas: thought and language, systematic reasoning, and modes of proof. It employs highly accessible explanations and a multitude of examples drawn from social issues and various academic fields, showing students and other readers how to construct and criticize arguments using the techniques of sound reasoning. The Voice of Reason examines the traditional elements of the field and also explores new ground. The first (...) section of the book elucidates the relationship between thought and language, explaining how words function. It discusses meaning, connotation, vagueness, ambiguity, and definition, identifying the linguistic elements that can produce mistakes in thinking. The next section describes the rules of systematic reasoning, examining such topics as truth, relevance, and adequacy; deductive logic ; and induction. Sixteen fallacies in thinking are also described through extensive illustrations and applications. The final section of the book offers a unique study of what constitutes proof in several different areas--including politics, advertising, law, and social issues--as well as in the academic disciplines of literature, science, history, and ethics. The author describes the various rules of evidence, using essays by major figures in each field as examples. An ideal text for courses in critical thinking, informal logic, and reasoning and writing, The Voice of Reason offers numerous pedagogical features including a host of examples; assignments, exercises, and puzzles at both the halfway point and at the end of each chapter; cartoons and quotations throughout; and practical applications of theoretical concepts. An extensive Instructor's Manual contains answers to the exercises that appear throughout the text. (shrink)

_Critical Thinking_ is a comprehensive and accessible introduction to the essential skills of good reasoning, written by Canadian authors for Canadian readers. The book includes a thorough treatment of such central topics as deductive and inductive reasoning, logical fallacies, how to recognize and avoid ambiguity, and how to distinguish what is relevant from what is not. Later chapters discuss the application of critical thinking skills to particular topics and tasks, including scientific reasoning, moral reasoning, media analysis, (...) and essay writing. This seventh edition is revised and updated throughout and includes a new chapter on legal reasoning as well as access to a companion website of additional questions and other useful resources. (shrink)

I have long been fascinated by the process of argument, so it seemed natural to study philosophy and logic at university, then, as a University teacher, to teach them. Since I gradually realised these subjects didn’t help students to reason and argue well, I tried to devise materials which would. This led first to my writing The Logic of Real Arguments and later, Critical Thinking: An Introduction. If you wish to teach thinking skills it is important to (...) assess whether your methods work, and I have developed several tests of critical thinking for different contexts, including a new UK Critical Thinking examination, now taken by thousands of school students. I worked with Richard Paul, Michael Scriven , Robert Swartz, Robert Ennis and many others. The emergence of the Informal Logic and Critical Thinking movement was an exciting time and I feel fortunate to have been part of it. (shrink)

Critical Thinking is a comprehensive and accessible introduction to the essential skills of good reasoning. The authors provide a thorough treatment of such central topics as deductive and inductive reasoning, logical fallacies, how to recognize and avoid ambiguity, and how to distinguish what is relevant from what is not. Later chapters discuss the application of critical thinking skills to particular topics and tasks, including scientific reasoning, moral reasoning, media analysis, and essay writing. This seventh (...) edition is revised and updated throughout, and includes a new chapter on legal reasoning as well as access to a companion website of additional questions and other useful resources. (shrink)

_Critical Thinking_ is a comprehensive and accessible introduction to the essential skills of good reasoning. The authors provide a thorough treatment of such central topics as deductive and inductive reasoning, logical fallacies, how to recognize and avoid ambiguity, and how to distinguish what is relevant from what is not. Later chapters discuss the application of critical thinking skills to particular topics and tasks, including scientific reasoning, moral reasoning, media analysis, and essay writing. This seventh edition is (...) revised and updated throughout, and includes a new chapter on legal reasoning as well as access to a companion website of additional questions and other useful resources. (shrink)

A critical study of McPeck's recent book, in which he strengthens and develops his arguments against teaching critical thinking (CT). Accepting McPeck's basic claim that there is no unitary skill of reasoning or thinking, I argue that his strictures on CT courses or programs do not follow. I set out what I consider the proper justification that programs in CT have to meet, and argue both that McPeck demands much more than is required, and also that (...) it is plausible that this deflated justification can be met. Specitically, I argue that it is reasonable to expect transfer of learning for basic logical skills. Additional topics covered include: the relation ofliberal education to critical thinking, argument analysis, testing for CT, and the value of conceptual or linguistic analysis. (shrink)

After determining one set of skills that we hoped our students were learning in the introductory philosophy class at Carnegie Mellon University, we designed an experiment, performed twice over the course of two semesters, to test whether they were actually learning these skills. In addition, there were four different lectures of this course in the Spring of 2004, and five in the Fall of 2004; and the students of Lecturer I were taught the material using argument diagrams as a (...) tool to aid understanding and critical evaluation, while the other students were taught using more traditional methods. We were interested in whether this tool would help the students develop the skills we hoped they would master in this course. In each lecture, the students were given a pre-test at the beginning of the semester, and a structurally identical post-test at the end. We determined that the students did develop the skills in which we were interested over the course of the semester. We also determined that the students who were able to construct argument diagrams gained significantly more than the other students. We conclude that learning how to construct argument diagrams improves a student's ability to analyze, comprehend, and evaluate arguments. (shrink)

The purpose of this paper is to give an overview of studies that sought to answer a number of questions about critical thinking First, studies are reviewed that looked at the correlation of scores on two major instruments, the Watson-Glaser Critical Thinking Appraisal (WGCTA) and the California Critical Thinking Skills Test (CCTST). Then, results are reported that provide information about the relation between critical thinking and academic skills, and (...) the independence of the construct of critical thinking. Finally, findings are reported on the relation between critical thinking and critical thinking dispositions, job related skills, years of education, fields of study, classroom interactions, learning styles, and cultural factors. (shrink)

The purpose of this study was to investigate the difference between the performance of Iranian male and female EFL learners on the five dimensions of the California Critical Thinking Skills Test.88 learners, out of 120, who were selected through convenience sampling method, participated in this study. The researcher used a quantitative research method with one-group pretest posttest design. This group received some treatment in the form of “the Meeting-House Debate” strategy. Data analysis was done using descriptive and (...) inferential statistics. Result showed that there was no significant difference in the performance of males and females on the sub-scales measured; i.e. evaluation, analysis, inference, deductive reasoning, and inductive reasoning. It was concluded that gender did not have a significant effect on the students’ critical thinking skills. (shrink)

This paper examines the content of the Watson-Glaser Critical Thinking Appraisal exam (1980). Our report is not a statistical review. We find the content of this exam defective in a number of areas. The exam consists of five “tests” of 16 questions for a total of 80 questions. Of these, we cannot recommend test 1, test 2, test 4, and test 5; and, we cannot recommend questions 4, 5, 14, (...) 16, 37, 45, 60, 63, 64, 65, 66, and 67. As shown in this report, the exam creates confusion and makes basic errors in critical thinking in a number of areas, and therefore, lacks content quality in these areas. Hence, no statistical results pertaining to the administration of these areas to students can be informative. We find the remaining areas acceptable as to content. But until the problems are corrected, we can only recommend that those who may use the exam remove the defective parts from test administration or from data collection and reporting. We recommend the former, because of the wasted time involved in the latter. This would amount to administering only 14 questions, i.e. test 3 with questions 37 and 45 eliminated.We also find the scope of the exam to be quite limited, but allow that this may be unavoidable for any instrument designed to be completed in about an hour. We further recommend the use of several tests, rather than one; and, that any such results be understood only as a measure of minimal competency (below which remediation likely is needed) for the skills tested, but not as an adequate measure of critical thinking. (shrink)

This paper examines the content of the Watson-Glaser Critical Thinking Appraisal exam (1980). Our report is not a statistical review. We find the content of this exam defective in a number of areas. The exam consists of five “tests” of 16 questions for a total of 80 questions. Of these, we cannot recommend test 1, test 2, test 4, and test 5; and, we cannot recommend questions 4, 5, 14, (...) 16, 37, 45, 60, 63, 64, 65, 66, and 67. As shown in this report, the exam creates confusion and makes basic errors in critical thinking in a number of areas, and therefore, lacks content quality in these areas. Hence, no statistical results pertaining to the administration of these areas to students can be informative. We find the remaining areas acceptable as to content. But until the problems are corrected, we can only recommend that those who may use the exam remove the defective parts from test administration or from data collection and reporting. We recommend the former, because of the wasted time involved in the latter. This would amount to administering only 14 questions, i.e. test 3 with questions 37 and 45 eliminated.We also find the scope of the exam to be quite limited, but allow that this may be unavoidable for any instrument designed to be completed in about an hour. We further recommend the use of several tests, rather than one; and, that any such results be understood only as a measure of minimal competency (below which remediation likely is needed) for the skills tested, but not as an adequate measure of critical thinking. (shrink)

This paper examines the content of the Watson-Glaser Critical Thinking Appraisal exam. (1980) Our report is not a statistical review. We find the content of this exam defective in a number of areas. The exam consists of five “tests” of 16 questions for a total of 80 questions. Of these, we cannot recommend test 1, test 2, test 4, and test 5; and, we cannot recommend questions 4, 5, 14, (...) 16,37, 45, 60, 63, 64, 65, 66, and 67. As shown in this report, the exam creates confusion and makes basic errors in critical thinking in a number of areas, and therefore, lacks content quality in these areas, Hence, no statistical results pertaining to the administration of these areas to students can be informative. We find the remaining areas acceptable as to content. But until the problems are corrected, we can only recommend that those who may use the exam remove the defective parts from test administration or from data collection and reporting. We recommend the former, because of the wasted time involved in the latter. This would amount to administering only 14 questions, i.e. test 3 with questions 37 and 45 eliminated.We also find the scope of the exam to be quite limited, but allow that this may be unavoidable for any instrument designed to be completed in about an hour. We further recommend the use of several tests, rather than one; and, that any such results be understood only as a measure of minimal competency (below which remediation likely is needed) for the skills tested, but not as an adequate measure of critical thinking. (shrink)

This paper examines the content of the Watson-Glaser Critical Thinking Appraisal exam. (1980) Our report is not a statistical review. We find the content of this exam defective in a number of areas. The exam consists of five “tests” of 16 questions for a total of 80 questions. Of these, we cannot recommend test 1, test 2, test 4, and test 5; and, we cannot recommend questions 4, 5, 14, (...) 16,37, 45, 60, 63, 64, 65, 66, and 67. As shown in this report, the exam creates confusion and makes basic errors in critical thinking in a number of areas, and therefore, lacks content quality in these areas, Hence, no statistical results pertaining to the administration of these areas to students can be informative. We find the remaining areas acceptable as to content. But until the problems are corrected, we can only recommend that those who may use the exam remove the defective parts from test administration or from data collection and reporting. We recommend the former, because of the wasted time involved in the latter. This would amount to administering only 14 questions, i.e. test 3 with questions 37 and 45 eliminated.We also find the scope of the exam to be quite limited, but allow that this may be unavoidable for any instrument designed to be completed in about an hour. We further recommend the use of several tests, rather than one; and, that any such results be understood only as a measure of minimal competency (below which remediation likely is needed) for the skills tested, but not as an adequate measure of critical thinking. (shrink)

This article chronicles the process used to transform a content-driven chemistry lab course into a course focused on developing critical-thinking skills. In general, the process described includes the following: 1) determining the needs of the students, 2) understanding the history of the course, 3) identifying some specific critical thinking skills that could be developed in the course, 4) considering how the skills can be taught developmentally, 5) defining criteria for the skills at different levels; 6) (...) revising the lab manual to include explicit critical-thinking definitions, directions and criteria for students, and 7) designing assessments of the students’ critical thinking abilities as defined and practiced in the lab. Six critical thinking skills (testing hypotheses, distinguishing between observationsand inferences, identifying assumptions, drawing conclusions supported by data, evaluating conclusions, and considering alternative explanations of data) were incorporated into the course. The lab manual displaying the results of this transformation is available by request from either the author or the journal editor. (shrink)

We note the development of the widely employed but loosely defined construct of critical thinking from its earliest instantiations as a measure of individual ability to its current status, marked by efforts to better connect the construct to the socially-situated thinking demands of real life. Inquiry and argument are identified as key dimensions in a process-based account of critical thinking. Argument is identified as a social practice, rather than a strictly individual competency. Yet, (...) new empirical evidence is presented documenting a role for individual reasoning competencies in supporting the effectiveness of argumentive discourse. A successful curriculum is described for employing extended engagement in dialogic argumentation as a pathway to development of individual argumentive skill. (shrink)

This innovative text is psychologically informed, both in its diagnosis of inferential errors, and in teaching students how to watch out for and work around their natural intellectual blind spots. It also incorporates insights from epistemology and philosophy of science that are indispensable for learning how to evaluate premises. The result is a hands-on primer for real world critical thinking. The authors bring a fresh approach to the traditional challenges of a critical thinking course: effectively explaining (...) the nature of validity, assessing deductive arguments, reconstructing, identifying and diagramming arguments, and causal and probabilistic inference. Additionally, they discuss in detail, important, frequently neglected topics, including testimony, including the evaluation of news and other information sources, the nature and credibility of science, rhetoric, and dialectical argumentation. The treatment of probability uses frequency trees and a frequency approach more generally, and argument reconstruction is taught using argument maps; these methods have been shown to improve students’ reasoning and argument evaluation. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Four Philosophical Models of the Relation Between Theory and PracticeEstelle R. JorgensenSince music education straddles theory and practice, my purpose is to sketch the strengths and weaknesses of four philosophical models of the relationship between theory and practice. I demonstrate that none of them suffices when taken alone; each has something to offer and its own detractions. And I conclude with four suggested ways in which the analysis (...) can be helpful to music teachers and those interested in their work.Clarifying what is meant by theory and practice raises a nest of conceptual problems. Concerning theory, it may be tempting to equate the terms "theory" and "philosophy." Among their shared properties, these terms deal with conceptual and abstract entities that, from the Enlightenment at least, have been held to be distinct from the phenomenal world. They also clarify ideas and distinguish one concept from another. Among their different purposes, the object of philosophy is the asking of questions in a search for wisdom or truth whereas theory is formulated for explanatory purposes, especially within the frame of scientific propositions that can be refuted through empirical observations. The tests of philosophy are, therefore, those of symbolic logic evidenced in principles such as [End Page 21] internal consistency, correspondence with evidence (deductive, inductive, or analogical), and coherence within a unity or whole. Although logical criteria may also be important in formulating and testing theory,1 it is tested and refuted primarily through means of qualitative descriptions and quantitative assessments of observable phenomena.Regarding practice, one is also confronted with an ambiguous construct that may be interpreted descriptively (what is done in the phenomenal world or taken to be the general state of affairs) or normatively (what is desirable or ideal). There is also the distinction between the practice of a seasoned performer and practice in the sense of striving towards the mastery of a competent and expert practice. In this regard, Vernon Howard distinguishes between "practice" (or the skills exemplified by proficient or expert performers) and "practise (or acquiring the level of mastery of proficient or expert performance)."2 For him, the ambiguous and paradoxical nature of artistic practice highlights the complexity of degrees of attaining mastery of skills or exemplary practice and the diverse array of skills ranging from habit to critical thinking involved in the practice of any art. Although each practice is distinguished by its own belief systems, rituals, expectations, and commonsense, boundaries between differing practices are sometimes "soft" or fuzzy, as one seeps into another.3 Consequently, it is often difficult to distinguish one from another at the margins where one practice becomes another.DichotomyThe notion of theory and practice as independent or a dichotomous relationship between the phenomenal world on the one hand and the mind and spirit on the other has its roots in the ancient world. For Plato, the world of "appearances," referring to the phenomenal world understood by imagination (eikasia) and belief (pistis), should be distinguished from the higher, abstract "intelligible world" grasped through thinking (dianoia), knowledge (episteme), and intelligence (noesis).4 René Descartes' later bifurcation of the inner and outer worlds and inversion of Platonic values and understandings resulted in the ascendancy of careful and deliberate observation of the phenomenal world over philosophical reflection.5 His ideas helped to set the stage for the Enlightenment and the Industrial, Scientific, and Information Revolutions. Empiricism, science, and technology gradually displaced philosophy as primary ways of knowing the phenomenal world and understanding the nature of mind, human cognition, feeling, and being. Making hard-boundaried distinctions between within and without one's self, the phenomenal world and the world of spiritual things, and theory and practice were important insights. These distinctions provided for limits on the sorts of ways in which truth could be known. Reasoned deliberation [End Page 22] and imaginative thought have particular usefulness in the world of theory while sensory perception and careful observation are especially useful in the phenomenal world of practice. So while the scholar might speculate about phenomena, observational tools are also useful in coming to know and understand them. Reason and observation each have particular strengths, and it ought not be assumed that philosophy or scientific observation... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Four Philosophical Models of the Relation Between Theory and PracticeEstelle R. JorgensenSince music education straddles theory and practice, my purpose is to sketch the strengths and weaknesses of four philosophical models of the relationship between theory and practice. I demonstrate that none of them suffices when taken alone; each has something to offer and its own detractions. And I conclude with four suggested ways in which the analysis (...) can be helpful to music teachers and those interested in their work.Clarifying what is meant by theory and practice raises a nest of conceptual problems. Concerning theory, it may be tempting to equate the terms "theory" and "philosophy." Among their shared properties, these terms deal with conceptual and abstract entities that, from the Enlightenment at least, have been held to be distinct from the phenomenal world. They also clarify ideas and distinguish one concept from another. Among their different purposes, the object of philosophy is the asking of questions in a search for wisdom or truth whereas theory is formulated for explanatory purposes, especially within the frame of scientific propositions that can be refuted through empirical observations. The tests of philosophy are, therefore, those of symbolic logic evidenced in principles such as [End Page 21] internal consistency, correspondence with evidence (deductive, inductive, or analogical), and coherence within a unity or whole. Although logical criteria may also be important in formulating and testing theory,1 it is tested and refuted primarily through means of qualitative descriptions and quantitative assessments of observable phenomena.Regarding practice, one is also confronted with an ambiguous construct that may be interpreted descriptively (what is done in the phenomenal world or taken to be the general state of affairs) or normatively (what is desirable or ideal). There is also the distinction between the practice of a seasoned performer and practice in the sense of striving towards the mastery of a competent and expert practice. In this regard, Vernon Howard distinguishes between "practice" (or the skills exemplified by proficient or expert performers) and "practise (or acquiring the level of mastery of proficient or expert performance)."2 For him, the ambiguous and paradoxical nature of artistic practice highlights the complexity of degrees of attaining mastery of skills or exemplary practice and the diverse array of skills ranging from habit to critical thinking involved in the practice of any art. Although each practice is distinguished by its own belief systems, rituals, expectations, and commonsense, boundaries between differing practices are sometimes "soft" or fuzzy, as one seeps into another.3 Consequently, it is often difficult to distinguish one from another at the margins where one practice becomes another.DichotomyThe notion of theory and practice as independent or a dichotomous relationship between the phenomenal world on the one hand and the mind and spirit on the other has its roots in the ancient world. For Plato, the world of "appearances," referring to the phenomenal world understood by imagination (eikasia) and belief (pistis), should be distinguished from the higher, abstract "intelligible world" grasped through thinking (dianoia), knowledge (episteme), and intelligence (noesis).4 René Descartes' later bifurcation of the inner and outer worlds and inversion of Platonic values and understandings resulted in the ascendancy of careful and deliberate observation of the phenomenal world over philosophical reflection.5 His ideas helped to set the stage for the Enlightenment and the Industrial, Scientific, and Information Revolutions. Empiricism, science, and technology gradually displaced philosophy as primary ways of knowing the phenomenal world and understanding the nature of mind, human cognition, feeling, and being. Making hard-boundaried distinctions between within and without one's self, the phenomenal world and the world of spiritual things, and theory and practice were important insights. These distinctions provided for limits on the sorts of ways in which truth could be known. Reasoned deliberation [End Page 22] and imaginative thought have particular usefulness in the world of theory while sensory perception and careful observation are especially useful in the phenomenal world of practice. So while the scholar might speculate about phenomena, observational tools are also useful in coming to know and understand them. Reason and observation each have particular strengths, and it ought not be assumed that philosophy or scientific observation... (shrink)

This study assessed the International Critical Thinking Essay Test (ICTET-A) for inter-rater reliability, internal reliability, and criterion validity. A self-selecting sample of participants (N = 100) completed the ICTET-A and a comparison test online. We found the ICTET-A items to have moderate to good levels of inter-rater reliability, and overall excellent inter-rater consistency for total test scores. The test had good internal reliability. There was a strong correlation between scores on the ICTET-A and the (...) comparison test. Factor analysis showed that scores were best explained with one factor, suggesting the test measures a single construct. The ICTET-A can therefore be considered a valid measure of critical thinking. Additionally, we propose a short form of the test. (shrink)

Enhanced by many innovative exercises, examples, and pedagogical features, The Power of Critical Thinking: Effective Reasoning About Ordinary and Extraordinary Claims, Second Edition, explores the essentials of critical reasoning, argumentation, logic, and argumentative essay writing while also incorporating material on important topics that most other texts leave out. Author Lewis Vaughn offers comprehensive treatments of core topics, including an introduction to claims and arguments, discussions of propositional and categorical logic, and full coverage of the basics of (...) class='Hi'>inductive reasoning. Building on this solid foundation, he also delves into areas neglected by other texts, adding extensive material on "inference to the best explanation" and on scientific reasoning; a thorough look at the evaluation of evidence and credibility; and a chapter on the psychological and social factors that can impede critical thinking. Additional notable elements are a chapter on moral reasoning, advice on how to evaluate Internet sources, and guidelines for evaluating occult, paranormal, or supernatural claims. The Power of Critical Thinking, Second Edition, integrates many pedagogical features including hundreds of diverse exercises, examples, and illustrations; progressive, stand-alone writing modules; numerous text boxes; step-by-step guidelines for evaluating claims, arguments, and explanations; a glossary of important terms; and many reminders, summaries, and review notes throughout. The text is supplemented by a companion website at www.oup.com/us/criticalthinking (offering a student study guide and more), and an Instructor's Manual with Test Questions (available both in print and on a CD). This unique text features a modular structure that allows instructors to teach the chapters in almost any order. Written in a student-friendly style and enhanced by humor where appropriate, it is ideal for courses in critical thinking, introduction to logic, informal logic, argumentative writing, and introduction to argumentation. New to the Second Edition * Full-color throughout and an expanded art program (37 more photos and illustrations) * A new writing module--an annotated sample student paper--and five additional essays for analysis * A new section on evaluating news reports and advertising * Timely discussions of intelligent design and population (nonintervention) studies * Expanded coverage of experts and authors and reasons to doubt their reliability * More "Field Problems" and exercise questions * Chapter objectives and key terms with definitions for each chapter. (shrink)

_Critical Thinking_ is a comprehensive introduction to the essential skills of good reasoning, refined and updated through seven editions published over more than two decades. This concise edition offers a succinct presentation of the essential elements of reasoning that retains the rigor and sophistication of the original text. The authors provide a thorough treatment of such central topics as deductive and inductive reasoning, logical fallacies, how to recognize and avoid ambiguity, and how to distinguish what is relevant from (...) what is not. A companion website provides a range of interesting supplements, including interactive review materials, supplemental readings, and writing tips. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Hume and the Lockean Background: Induction and the Uniformity Principle David Owen Introduction What has come to be called Hume's problem of induction is special in many ways. It is arguably his most important and influential argument, especially when seen in its overall context of the more general argument about causaUty. It has come to be one of the great "standard problems" ofphilosophyandyetis,by most accounts, almost unique in (...) having no ancient precursor. Interestingly, the argument is frequently presented in terms that the author never used. Itis difficult for us not to think of the problem in terms of the contrast between deductive vs. inductive reasoning (or logic, or whatever). But this is a contrast nowhere to be found in Hume: he talks of demonstrative vs. probable (or moral) reasoning. Hume uses the word "induction" only twice in the Treatise1 and in neither case is it clear that the word is used toreportapieceofprobablereasoning.2One ofthefewoccurrences of"deduce" or "deducing" occurs in the second Enquiry, where he talks about "following the experimental method, and deducing general maximsfrom acomparisonofparticularinstances,"3hardlyaparadigm of what we would call deductive reasoning.4 Many modern studies of Hume that make a real attempt to understand what Hume meant by demonstration and probability, in the context of his argument about induction, tend towards the ahistorical,6 treating Hume's writings as contemporary texts. But failure to take into account some of the background concerning the nature of demonstrative and probable reason makes it unlikely, I think, that we can understand Hume's argument. Part ofthe problem is the failure to identify Hume's targets in that famous negative argument about induction (vague reference is sometimes made to the "rationalists") and part of the problem is identifying the role the uniformity principle plays in Hume's famous argumentand thelightitsheds on the conception ofprobablereasoning Hume was attacking. In this paper I want to argue that a careful look at Locke solves some ofthese problems: he has a well developed view ofdemonstrative and probable reasoning, his confidence in conformity as a ground of probability is a Ukely target of Hume's attack and his Volume XVIII Number 2 179 DAVID OWEN accountshedsmuchlightonwhatrole the principleofuniformitymight play in Hume's account.6 Of course, at a certain level of philosophical abstraction it is irrelevant whether we have understood what Hume "really meant." Theproblemofinductionhas emergedas a central onein epistemology, philosophical logic, and philosophy of science. It would be an interesting question in philosophical historiography to trace the development ofthe "problem" from Hume's time to our own but that is not my task here. I trust one needs no justification for taking an historical look at a famous problem rather than tackling the problem head-on in one's own terms. But if one is needed, here is mine: sometimes, by looking at a problem from a different, historical perspective, one sees a different problem or afamiliar problem in a new light. One's philosophical horizons are broadened. Furthermore, one may make an interesting historical discovery, or at least draw some interesting historical connections. I take it as uncontroversial that Locke, following Descartes, rejected a formal, logical account of demonstrative reasoning. Instead ofusing a formal, syllogistic account ofhow two propositions can entail a third, Locke concentrated on the relation two ideas bear one to another.7 Thus a demonstration, for Locke, getsits force, notfrom what we would call a deductive relation between one set of propositions (.the premises) and anotherproposition (the conclusion), butrather from the relation one idea bears to another, either directly, or via a chain of intermediate ideas. It is true that Locke frequently talks of inferring one proposition from another, but this is always cashed out in terms of relations ofideas via a chain ofintermediate ideas.8 It is also true that Locke occasionally uses the terms "deduce" and "deduction." But these are never used in our sense that has to do with formal deductive validity. Rather, they are simply used loosely in the informal sense of "argue" or "infer," and "argument" or "inference."9 In the rest of this paper, all uses ofthe word"deduction" andits cognates shouldbe taken as having the modern sense, unless flagged as having "Locke... (shrink)

The study of deductive reasoning has been a major paradigm in psychology for approximately the past 40 years. Research has shown that people make many logical errors on such tasks and are strongly influenced by problem content and context. It is argued that this paradigm was developed in a context of logicist thinking that is now outmoded. Few reasoning researchers still believe that logic is an appropriate normative system for most human reasoning, let alone a model for (...) describing the process of human reasoning, and many use the paradigm principally to study pragmatic and probabilistic processes. It is suggested that the methods used for studying reasoning be reviewed, especially the instructional context, which necessarily defines pragmatic influences as biases. (shrink)

The Collegiate Learning Assessment Test has become popular and highly recommended, praised for its reliability and validity. I argue that while the CLA may be a commendable test for measuring critical-thinking, problem-solving, and logical-reasoning skills, those who are scoring students’ answers to the test’s questions are rendering the CLA invalid.

A popular three-stage argument appraisal strategy calls for (1) identifying the parts of the argument, (2) classifYing the argument as deductive, inductive, or some other type, and (3) appraising the argument using the standards appropriate for the type. This strategy fails for a number of reasons. I propose a comprehensive alternative approach that distinguishes between inductive, deductive, and other standards; calls for the successive application of standards combined with assumption-ascription, according to policies that depend for (...) their selection on the goals of the appraiser; and provides for qualified reasoning. (shrink)

El desarrollo de la argumentación en el proceso de alfabetización académica cobra especial importancia debido a que el conocimiento académico es esencialmente argumentativo. Por esto, el objetivo de esta investigación es, por un lado, relevar, a partir del discurso de los docentes en un programa de Biología e Historia, las representaciones sociales acerca de la enseñanza-aprendizaje de la argumentación y, por otro, generar un modelo explicativo de este fenómeno. La recolección de datos se realizó por medio de entrevistas a docentes (...) de ambas disciplinas y el análisis de ellos, mediante la técnica de análisis de contenido, la que busca formular inferencias reproducibles y válidas que puedan aplicarse a un contexto determinado. The development of argumentation in the process of academic literacy is particularly important because scientific knowledge is essentially argumentative. For this reason, the purpose of this research is to elicit social representations about teaching and learning of argumentation from the discourse of teachers in a program of Biology and History, as well as to generate an explanatory model for this phenomenon. The data collection instrument used was an interview to teachers in both disciplines, and the data was analyzed using content analysis, a technique that seeks to develop replicable and valid inference that can be applied to a given context. (shrink)

Future Logic is an original, and wide-ranging treatise of formal logic. It deals with deduction and induction, of categorical and conditional propositions, involving the natural, temporal, extensional, and logical modalities. Traditional and Modern logic have covered in detail only formal deduction from actual categoricals, or from logical conditionals (conjunctives, hypotheticals, and disjunctives). Deduction from modal categoricals has also been considered, though very vaguely and roughly; whereas deduction from natural, temporal and extensional forms of conditioning has been all but totally ignored. (...) As for induction, apart from the elucidation of adductive processes (the scientific method), almost no formal work has been done. This is the first work ever to strictly formalize the inductive processes of generalization and particularization, through the novel methods of factorial analysis, factor selection and formula revision. This is the first work ever to develop a formal logic of the natural, temporal and extensional types of conditioning (as distinct from logical conditioning), including their production from modal categorical premises. Future Logic contains a great many other new discoveries, organized into a unified, consistent and empirical system, with precise definitions of the various categories and types of modality (including logical modality), and full awareness of the epistemological and ontological issues involved. Though strictly formal, it uses ordinary language, wherever symbols can be avoided. Among its other contributions: a full list of the valid modal syllogisms (which is more restrictive than previous lists); the main formalities of the logic of change (which introduces a dynamic instead of merely static approach to classification); the first formal definitions of the modal types of causality; a new theory of class logic, free of the Russell Paradox; as well as a critical review of modern metalogic. But it is impossible to list briefly all the innovations in logical science — and therefore, epistemology and ontology — this book presents; it has to be read for its scope to be appreciated. (shrink)

Part one: Acquiring critical thinking skills -- Out of the fog : the pathway to critical thinking -- Nuts and bolts : the basics of argument -- Analysis : the heart of critical thinking -- Handling claims, drawing inferences -- The logic machine : deductive and inductive reasoning -- Part two: Sharpening the tools -- The persuasive power of analogies -- Fallacies, fallacies : steering clear of argumentative quicksand -- Roll the dice (...) : causal and statistical reasoning -- Syllogisms -- Patterns of deductive reasoning: rules of inference -- Part three: Going out into the world -- Out of the silence: the power of language -- Desire and illusion: analyzing advertising -- Web sight : critical thinking and the internet -- Voices and visions : the media -- Clearing the path : legal reasoning. (shrink)