Internal-External Locus of Control and the Practice of Birth Control

Reimanis G. Schaeffer M. Effects of counseling and achievement motivation training on locus of reinforcement control. Unpublished paper presented at EPA in Atlantic City, April, 1970.

Rotter J. B. Generalized expectancies for internal versus external control of reinforcement. Psychological Monographs, 1966, 80, No. 1 (Whole No. 609).