Eight randomly equivalent samples of high school seniors were each given a unique form of the ACT Assessment Mathematics Usage Test (ACTM). Signed measures of differential item performance (DIP) were obtained for each item in the eight ACTM forms. DIP estimates were analyzed and a significant item category effect was found. (Author/LMO)

The study investigated the issue of differential selection of foils (incorrect responses) with Black English structures by black and white examinees. Linguistic research revealed systematic differences between Black English and Standard American English. Grammatical and phonological features were important distinctions. Five categories of Black…

Writers of mathematics test items, especially those who write for standardized tests, are often advised to arrange the answer options in logical order, usually ascending or descending numerical order. In this study, 32 mathematics items were selected for inclusion in four experimental pretest units, each consisting of 16 items. Two versions…

The effects of test content reflecting black or white culture, on the performance of college-bound students of both races was examined. Eighty-five culture-specific items were developed for use in the English Usage and Social Studies Reading subtests of the ACT (American College Testing) Assessment Program. Items were administered as four separate…