Investigated whether dropouts and other students having difficulty with physics could be identified by including mathematics reasoning items along with mathematics skill items on a 13-item mathematics pretest and by using records of past performance in conjunction with the pretest. Sample included 483 students in an introductory, noncalculus,…

Examines content and problem effects of formal thought in 13-year-olds (N=120). Three controlling variables tasks with different content and two question-type tests (analysis and controlling questions) were administered. Findings, among others, indicate that content and problem effects contribute to variance on formal reasoning problems.…

Examines the effect of familiar and unfamiliar task content upon proportional reasoning abilities of ninth grade students. Uses content from chemistry and physics textbooks. Reports that student performance was higher on proportional reasoning problems involving familiar content than with unfamiliar content and that content famililarity interacted…