Previous research on calculator use in standardized assessments of quantitative ability focused on the effect of calculator availability on item difficulty and on whether test developers can predict these effects. With the introduction of an on-screen calculator on the Quantitative Reasoning measure of the "GRE"® revised General Test, it…

The first of two studies reported examined the factors that predict differences in item responses for black and white matched examinees to analogies on the Graduate Record Examinations (GRE). Data were taken from 13 forms of the GRE Verbal Test, with a median sample size of 21,000 whites and a median sample size of 1,400 blacks for the purpose of…

The stability was evaluated of a partial correlation index, comparisons of item characteristic curves, and comparisions of item difficulties in assessing race and sex differences in the performance of verbal items on the Graduate Record Examination Aptitude Test. All three indexes exhibited consistency in identifying the same items in different…

The importance of item difficulty (equated delta) was explored as a predictor of differential item functioning of Black versus White examinees for 4 verbal item types using 13 Graduate Record Examination forms and 11 Scholastic Aptitude Test forms. Several significant racial differences were found. (TJH)

Differential item functioning (DIF) methodology for revealing sources of item difficulty and performance characteristics of different groups was explored. A total of 150 Scholastic Aptitude Test items and 132 Graduate Record Examination general test items were analyzed. DIF was evaluated for males and females and Blacks and Whites. (SLD)