1. Accepted class descriptions multiply;Duggan;Coll. Bd. Rev.,1958
2. Making test scores more useful for prediction;Frederiksen;Educ. psychol. Measmt,1951
3. Putting statistics to use;Kaczkowski;Vocational Guid. Quart.,1958
4. The 1938 Psychological Examination;Thurstone;Educ. Rec.,1939