The identification of variables useful in the prediction of drug abuse has been the subject of a great deal of research. The research presented in this report attempts to add to the existing collection of information concerning variables useful in the prediction of drug abuse. An experimental instrument, the Social Factors Questionnaire, was…

Few meaningful sex differences will be reported if investigators go beyond the reporting of statistical significance to determine the indices of experimental effect size. Techniques for obtaining this type of information include the calculation of d and the estimate of omega squared, which indicate the advisability of continuing a line of…

The purposes of this study were (1) to test whether the occupational preferences of senior psychology majors could be predicted using a within-subjects analysis of Vroom's model; (2) to examine the predictive validity of valence and instrumentality measures, and (3) to compare the predictive validity of the weighted and unweighted valence models.…

The Eysenck Junior P.I. questionnaire was administered to groups of institutionalized and non-institutionalized delinquents and to non-delinquents. Items were analyzed to determine their effectiveness in predicting group membership. Comments by H.J. Eysenck are also presented. (Author/BP)

THE RELATIVE EFFECTIVENESS OF TASK SCORES VERSUS IQ AS PREDICTORS OF ACADEMIC ACHIEVEMENT WAS INVESTIGATED, AND THE CORRELATIONS BETWEEN TASK SCORES AND IQ RE-EXAMINED. SUBJECTS WERE 99 UPPER-MIDDLE CLASS ELEMENTARY SCHOOL CHILDREN WITH A MEAN STANFORD-BINET IQ OF 126 (SD EQUALS 19). THE INSTRUMENTS USED WERE DUNN'S OBJECT SORTING TASK (OST),…

The 4,987 freshmen who entered the Bloomington campus of Indiana University in the fall of 1977 were used to establish two schemes for predicting first-semester grade point averages. Three sets of prediction equations and a graphic scheme for determining probable grade point averages were provided. Entering freshmen norms were included for SAT…