Methodologies were proposed for combining background and aptitude and/or achievement information in an approach to the classification problem using the concept of under- and overachievement. The methodologies were applied to independent samples from four high school curricula. The results suggest that when past achievement and/or aptitudes were…

The Graduate Record Examinations (GRE) Aptitude and Advanced Tests were evaluated as predictors of a dichotomous criterion of whether or not the candidate attained the doctorate within a specified length of time. More specifically, the project attempted to define subgroups for which the GRE tests have varying degrees of validity, and to provide…

First-year graduate students were asked to respond to a biographical questionnaire which emphasized motivational variables in addition to the usual demographic variables. It was hypothesized that the students could select from a group of ability measures the one best indicator of how well they would do in graduate school. To test this hypothesis…