The assumption called PIRC (proportional item response curve) was tested in which PIRC was used to predict item scores of selected examinees on selected items. Findings show approximate accuracies of prediction for PIRC, the three-parameter logist model, and a modified Rasch model. (12 references) (Author/LB)

Metanalysis of 27 studies dealing with psychology students and the Graduate Record Examinations' (GRE) validity in predicting graduate school success was conducted. Overall, results do not indicate that the verbal and advanced psychology portions are valid predictors of grades, although the quantitative section predicts grades in quantitative…

The Battelle Developmental Inventory (BDI) was administered to 121 young children, and parents rated them with the Social Skills Rating System 2-3 years after entry into the study. Correlations between the two measures revealed very weak to modest relationships, providing limited support for the BDI as a predictive measure of future…

The Slosson Intelligence Test (SIT) and the Stanford-Binet, Fourth Edition (SBIV) were administered to 95 elementary students referred because of either learning problems or potential giftedness. SIT scores predicted SBIV verbal scores more accurately than composite scores. Overall the SIT predicted SBIV scores better for students with learning…

Consistent with C. J. Gelso's (1979, 1993, 1997) research training environment theory, the authors hypothesized that research training environments exist in predoctoral internships. The Internship Research Training Environment Scale (IRTES) was developed to assess research training environments found in predoctoral psychology internships.…

Randomization should be employed whenever possible but the use of carefully controlled nonrandomized data to estimate causal effects is a reasonable and necessary procedure in many cases. (Author/BJG)

This study's purposes were to determine the predictive validity of the Washington Pre-College Test (WPCT) for 16 introductory courses at Yakima Valley College, to demonstrate the importance of a coordinated program of institutional research, and to help the WPCT program gather more data on the students. The predictor intercorrelational table and…

Rescored Wechsler Adult Intelligence Scale (Revised) protocols from 81 normal adults using the Satz Mogel short form procedure. Low correlations between the short forms and full protocols suggest the Satz Mogel procedure can serve only as a gross screening test with normal adults. (JAC)

Tests the hypothesis that the Mueller-Lyer illusion will be less strong when an observer is distant from figures than when he is close, and presents results that do not confirm the hypothesis. (RW)

Examines two interpretations of the purpose of licensure examinations: (1) as predictors of future professional performance, and (2) as measures of critical abilities. Holds that is is difficult to accurately predict professional performance, and, therefore, that licensure exams should be seen primarily as evaluations of certain abilities related…