1. The interaction of ability levels and socioeconomic variables in the prediction of college dropouts and grade achievement;Barger;Educational and Psychological Measurement,1965
2. Identifying college dropouts with the Minnesota Counseling Inventory;Brown;Personnel and Guidance Journal,1960
3. Sources of error in college attrition studies;Eckland;Sociology of Education,1964
4. Personality factors in college dropout;Heilbrun;Journal of Applied Psychology,1965