TitlePolytomous modeling of cognitive errors in computer adaptive testing
Publication TypeJournal Article
Year of Publication2001
AuthorsWang, L-S, Li., C-S
JournalJournal of Applied Measurement
Volume2 (4).
Publication Languageeng

Used Monte Carlo simulation to compare the relative measurement efficiency of polytomous modeling and dichotomous modeling under different scoring schemes and termination criteria. Results suggest that polytomous computerized adaptive testing (CAT) yields marginal gains over dichotomous CAT when termination criteria are more stringent. Discusses conditions under which polytomous CAT cannot prevent the nonuniform gain in test information. (SLD)