15 found
Order:
Disambiguations
A. Ortmann [8]Andreas Ortmann [7]
  1. Experimental practices in economics: A methodological challenge for psychologists?Ralph Hertwig & Andreas Ortmann - 2001 - Behavioral and Brain Sciences 24 (3):383-403.
    This target article is concerned with the implications of the surprisingly different experimental practices in economics and in areas of psychology relevant to both economists and psychologists, such as behavioral decision making. We consider four features of experimentation in economics, namely, script enactment, repeated trials, performance-based monetary payments, and the proscription against deception, and compare them to experimental practices in psychology, primarily in the area of behavioral decision making. Whereas economists bring a precisely defined “script” to experiments for participants to (...)
    Direct download (4 more)  
     
    Export citation  
     
    Bookmark   58 citations  
  2.  90
    Deception in experiments: Revisiting the arguments in its defense.Ralph Hertwig & Andreas Ortmann - 2008 - Ethics and Behavior 18 (1):59 – 92.
    In psychology, deception is commonly used to increase experimental control. Yet, its use has provoked concerns that it raises participants' suspicions, prompts second-guessing of experimenters' true intentions, and ultimately distorts behavior and endangers the control it is meant to achieve. Over time, these concerns regarding the methodological costs of the use of deception have been subjected to empirical analysis. We review the evidence stemming from these studies.
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark   10 citations  
  3.  49
    Prospecting neuroeconomics.Andreas Ortmann - 2008 - Economics and Philosophy 24 (3):431-448.
    The following is a set of reading notes on, and questions for, the Neuroeconomics enterprise. My reading of neuroscience evidence seems to be at odds with basic conceptions routinely assumed in the Neuroeconomics literature. I also summarize methodological concerns regarding design, implementation, and statistical evaluation of Neuroeconomics experiments.
    Direct download (8 more)  
     
    Export citation  
     
    Bookmark   6 citations  
  4.  65
    Money, lies, and replicability: On the need for empirically grounded experimental practices and interdisciplinary discourse.Ralph Hertwig & Andreas Ortmann - 2001 - Behavioral and Brain Sciences 24 (3):433-444.
    This response reinforces the major themes of our target article. The impact of key methodological variables should not be taken for granted. Rather, we suggest grounding experimental practices in empirical evidence. If no evidence is available, decisions about design and implementation ought to be subjected to systematic experimentation. In other words, we argue against empirically blind conventions and against methodological choices based on beliefs, habits, or rituals. Our approach will neither inhibit methodological diversity nor constrain experimental creativity. More likely, it (...)
    Direct download (6 more)  
     
    Export citation  
     
    Bookmark   3 citations  
  5.  19
    Ecological rationality and economics: where the Twain shall meet.Andreas Ortmann & Leonidas Spiliopoulos - 2023 - Synthese 201 (4):1-30.
    Over the past decades psychological theories have made significant headway into economics, culminating in the 2002 (partially) and 2017 Nobel prizes awarded for work in the field of Behavioral Economics. Many of the insights imported from psychology into economics share a common trait: the presumption that decision makers use shortcuts that lead to deviations from rational behaviour (the Heuristics-and-Biases program). Many economists seem unaware that this viewpoint has long been contested in cognitive psychology. Proponents of an alternative program (the Ecological-Rationality (...)
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  6.  17
    Experimental practices in economics: A methodological challenge for psychologists?-Author's Response-Money, lies, and replicability: On the need for empirically grounded experimental practices.Ralph Hertwig & Andreas Ortmann - 2001 - Behavioral and Brain Sciences 24 (3):433-452.
    This response reinforces the major themes of our target article. The impact of key methodological variables should not be taken for granted. Rather, we suggest grounding experimental practices in empirical evidence. If no evidence is available, decisions about design and implementation ought to be subjected to systematic experimentation. In other words, we argue against empirically blind conventions and against methodological choices based on beliefs, habits, or rituals. Our approach will neither inhibit methodological diversity nor constrain experimental creativity. More likely, it (...)
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   2 citations  
  7.  11
    Experimental practices in economics: A methodological challenge for psychologists?-Open Peer Commentary-Different perspective of human behavior entail different experimental practices.R. Hertwig, A. Ortmann & R. Suleiman - 2001 - Behavioral and Brain Sciences 24 (3):429.
    My main argument is that the advice offered to experimental psychologists by Hertwig & Ortmann overlooks fundamental differences between the goals of researchers in psychology and economics. Furthermore, it is argued that the reduction of data variability is not always an end to be sought by psychologists. Variability that originates in individual differences constitutes valuable data for psychological research.
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  8.  8
    Experimental practices in economics: A methodological challenge for psychologists?-Open Peer Commentary-Varying the scale of financial incentives under real and hypothetical conditions.R. Hertwig, A. Ortmann, C. A. Holt & S. K. Laury - 2001 - Behavioral and Brain Sciences 24 (3):417-417.
    The use of high hypothetical payoffs has been justified by the realism and relevance of large monetary consequences and by the impracticality of making high cash payments. We argue that subjects may not be able to imagine how they would behave in high payoff situations.
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  9.  7
    Experimental practices in economics: A methodological challenge for psychologists?-Open Peer Commentary-Choice output and choice processing: An analogy to similarity.R. Hertwig, A. Ortmann & A. B. Markman - 2001 - Behavioral and Brain Sciences 24 (3):423-423.
    The target article suggests that many practices of experimental economists are preferable to those used by psychologists studying judgment and decision making. The advantages of the psychological approach become clear when the focus of research shifts from choice output to choice processes. I illustrate this point with an example from research on similarity comparisons.
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  10.  15
    Experimental practices in economics: A methodological challenge for psychologists?-Open Peer Commentary-Behavioral and economic approaches to decision making: A common ground.R. Hertwig, A. Ortmann, E. Fantino & S. Stolarz-Fantino - 2001 - Behavioral and Brain Sciences 24 (3):407-407.
    Experimental psychologists in the learning tradition stress the importance of three of the authors' four key variables of experimental design. We review research investigating the roles played by these variables in studies of choice from our laboratory. Supporting the authors' claims, these studies show that the effects of these variables are not fixed and should not be taken for granted.
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  11.  9
    Experimental practices in economics: A methodological challenge for psychologists?-Open Peer Commentary-Financial incentives do not pave the road to good experimentation.R. Hertwig, A. Ortmann, T. Betsch & S. Haberstroh - 2001 - Behavioral and Brain Sciences 24 (3):404-404.
    Hertwig and Ortmann suggest paying participants contingent upon performance in order to increase the thoroughness they devote to a decision task. We argue that monetary incentives can yield a number of unintended effects including distortions of the subjective representation of the task and impaired performance. Therefore, we conclude that performance-contingent payment should not be generally employed in judgment and decision research.
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  12.  6
    Experimental practices in economics: A methodological challenge for psychologists?-Open Peer Commentary-Participant skepticism: If you can't beat it, model it.R. Hertwig, A. Ortmann, C. R. M. McKenzie & J. T. Wixted - 2001 - Behavioral and Brain Sciences 24 (3):424-424.
    For a variety of reasons, including the common use of deception in psychology experiments, participants often disbelieve experimenters' assertions about important task parameters. This can lead researchers to conclude incorrectly that participants are behaving non- normatively. The problem can be overcome by deriving and testing normative models that do not assume full belief in key task parameters. A real experimental example is discussed.
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  13.  8
    Experimental practices in economics: A methodological challenge for psychologists?-Open Peer Commentary-We should not impose narrow restrictions on psychological methods.R. Hertwig, A. Ortmann & M. Maratsos - 2001 - Behavioral and Brain Sciences 24 (3):422-422.
    Hertwig and Ortmann suggest greater standardization of procedures in experimental psychology to help with problems of replicability and consistency of findings. It is argued that, this view is inconsistent with their other interesting proposals, and heterogeneity of method is appropriate in psychology.
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  14.  6
    Experimental practices in economics: A methodological challenge for psychologists?-Open Peer Commentary-Theory-testing experiments in the economics laboratory.R. Hertwig, A. Ortmann, A. S. Gillies & M. Rigdon - 2001 - Behavioral and Brain Sciences 24 (3):410-410.
    Features of experimental design impose auxiliary hypotheses on experimenters. Hertwig & Ortmann rightly argue that the ways some variables are implemented in psychology cloud results, whereas the different implementations in economics provide for more robust results. However, not all design variables support this general conclusion. The repetition of trials may confuse results depending on what theory is being tested. We explore this in the case of simple bargaining games.
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  15.  42
    Proper experimental design and implementation are necessary conditions for a balanced social psychology.Andreas Ortmann & Michal Ostatnicky - 2004 - Behavioral and Brain Sciences 27 (3):352-353.
    We applaud the authors' basic message. We note that the negative research emphasis is not special solely to social psychology and judgment and decision-making. We argue that the proposed integration of null hypothesis significance testing (NHST) and Bayesian analysis is promising but will ultimately succeed only if more attention is paid to proper experimental design and implementation.
    Direct download (6 more)  
     
    Export citation  
     
    Bookmark