PREDICTING EPQR FULL SCALE SCORES FROM THE SHORT FORM VERSION

Linear regression equations are presented below that estimate each EPQR full scale score from the short form scale score. These equations were computed over 747 female and 517 male subjects, drawn from the U.K. reference sample of the EPQR questionnaire. Goodness of fit estimates range from a low of 74% to a maximum of 90%. Examination of alternative nonlinear regression models yielded inferior goodness of fit statistics. Finally, 3 tables are provided (male, female, and total sample) that allow simple lookup of the estimated full scale score from its short form counterpart.