J Educ Psychol. 1965 Apr;56:67-72. doi: 10.1037/h0021783.
Journal of educational psychology
K E MYERS, R M TRAVERS, M E SANFORD
PMID: 14289367 DOI: 10.1037/h0021783
[No abstract available.]
Keywords: CHILD; REINFORCEMENT (PSYCHOLOGY); VERBAL LEARNING