The effects of a one- and two-year causal-learning program1


  • 1

    This study is an expansion of a paper presented before the APA (Division 15) convention in Chicago, Illinois, September 1960 The data for this study were collected and analyzed while the author was a member of the Preventive Psychiatry Program at the Iowa Child Welfare Research Station, State University of Iowa. Appreciation is expressed to the Grant Foundation and to Goucher College for their support of this research study