1. Manual for the child behavior checklist 4–18 and 1991 profile;Achenbach,1991
2. Attitudes, personality, and behavior;Ajzen,2005
3. The nature of prejudice;Allport,1954
4. Castagno, K. S. (1991). A study of the effect of an after-school physical education program on the self-concept of middle school EMR students. Doctoral dissertation. The University of Connecticut, Storrs.
5. Special Olympics Unified sports: Changes in male athletes during a basketball season;Castagno;Adapted Physical Activity Quarterly,2001