An initial study of the revised (1985) Student Descriptive Questionnaire (SDQ) of the College Board found it to be of sufficient accuracy to fulfill its intended purposes. This second phase examined the adequacy of the SDQ in terms of the predictive validity of its student academic self-report information against a criterion of first-year college achievement. Findings with 10,573 first-year students indicate that the validities are consonant with earlier study results using the original version of the SDQ, as well as with other similar self-report instruments used with college applicants. This was evident in the overall magnitudes of the validities obtained, the precision of prediction in multiple regression equations, and in differences between validities for school-reported and student-reported high school academic achievement (as grade point average and class rank). Results indicated a slight but consistent superiority for school-reported information. In multiple predictions based on either school- or student-reported information, apparent differences were found in the relative contributions of predictor variables (Scholastic Aptitude Test results and high school academic achievement); in the relative importance of the predictors for subgroups based on race, and to a lesser degree, on sex; and in differing roles for grade point average and class rank as predictors. (Contains 9 tables and 32 references.) (Author/SLD)