The feasibility and effectiveness of a Bayesian method for estimating regressions in m groups is studied by application of the method to data from the Basic Research Service of The American College Testing Program. Evidence supports the belief that in many testing applications the collateral information obtained from each subset of m-1 colleges…

Differential prediction of two-year grade point average is reported for gender groups within university programs of study. Johnson-Neyman analyses indicated regions on the predictor score scales where differential prediction has practical impact for a significant portion of students. Careful selection of a subset of variables can reduce…

The existence of differential prediction of two-year grade point average is reported for gender groups within programs of study at the University of Iowa. Academic records of all freshmen entering the University in 1978 in the fields of Business, Liberal Arts, Pre-Medicine, and those undecided as to major were analyzed with respect to American…