This experiment investigated the effect of format (line vs. bar), viewers’ familiarity with variables, and viewers’ graphicacy (graphical literacy) skills on the comprehension of multivariate (three variable) data presented in graphs. Fifty-five undergraduates provided written descriptions of data for a set of 14 line or bar graphs, half of which depicted variables familiar to the population and half of which depicted variables unfamiliar to the population. Participants then took a test of graphicacy skills. As predicted, the format influenced viewers’ interpretations (...) of data. Specifically, viewers were more likely to describe x–y interactions when viewing line graphs than when viewing bar graphs, and they were more likely to describe main effects and “z–y” (the variable in the legend) interactions when viewing bar graphs than when viewing line graphs. Familiarity of data presented and individuals’ graphicacy skills interacted with the influence of graph format. Specifically, viewers were most likely to generate inferences only when they had high graphicacy skills, the data were familiar and thus the information inferred was expected, and the format supported those inferences. Implications for multivariate data display are discussed. (shrink)

Journalism faces a series of ethics crises, particularly in Central Asia because journalism is marked by wide ethical misbehavior including lack of balance and impartiality, using multiple fake nam...

The digital revolution has widened the array of curriculum materials available to history teachers. Given the variable quality of these new materials and the deeply contextual nature of teaching, educators need better tools for selecting among the vast options available. This study aimed to validate a device designed for that purpose, called the Curriculum Materials Evaluation Tool (CMET). Using a questionnaire and think-aloud interview, the study examined how four social studies teachers evaluated a novel material set for potential classroom use, (...) and how the CMET mediated their analysis. Findings showed that the teachers preferred when materials are readily accessible and adaptable for their specific teaching context, in contrast to “one-size-fits-all” resources that dominate the Web. The CMET appeared to foster a deeper and broader analysis of the given material set, especially regarding its political and cultural orientation. The study suggests that teachers’ role in vetting and adapting digital materials be recognized and embraced. The CMET can contribute to that end through its use in district adoption committees, teacher professional development, and collaborative curriculum research. (shrink)