Freshmen (N=202) took two batteries of aptitude tests 10 months apart. Six pairs of tests were studied. Two pairs were identical, two were parallel, and two were completely different. This design made it possible to separate three components of practice: (a) general test sophistication, (b) specific practice effect, and (c) item familiarization.…

Research to date on adaptive (sequential, branched, individualized, tailored, programmed, response-contingent) ability testing is reviewed and summarized, following a brief review of problems inherent in conventional individual and group approaches to ability measurement. Research reviewed includes empirical, simulation and theoretical studies of…

The results of this study show that, below ten years of age, stability in IQ scores from group verbal tests is considerably below that for Stanford-Binet. Non-verbal IQ scores were found to have substantially less stability than verbal IQs. (Author/DEP)

This study empirically investigated the validity and utility of the stratified adaptive computerized testing model (stradaptive]developed by Weiss (1973). The model presents a tailored testing strategy based on Binet IQ measurement theory and Lord's (1972) modern test theory. Nationally normed School and College Ability Test Verbal analogy items…

Black students from two cities and Mexican-American students, both male and female, showed small but consistent tendencies to perform better, relative to White groups, on three nontraditional measures: tests of inductive reasoning, spatial scanning, and associative memory. These measures showed somewhat less discrepancy between the groups than did…