We elaborate on a new approach of assessing content-based epistemic clarity of college physics students in terms of their ability to discriminate between different epistemic warrants for propositions in a chained argument in physics. A threefold classification (nominal, physical, and mathematical) of warrants is used, with each class split into a…

Describes a study that compared the effectiveness of screen designs for system interfaces by tallying keyboarding errors during online searches. The methodology is described as an unobtrusive means for obtaining objective and empirically based data for interface comparisons. A questionnaire used to determine users' reactions to screen designs is…

Error profiles for the Fall Enrollment Survey of the Higher Education General Information Survey (HEGIS) were developed as part of an assessment of the quality of survey data. Three statistics were of particular interest: the count of full-time equivalent students, the breakdown by race/ethnicity, and the count of unclassified students. Attention…