Abstract
Locus of control of reinforcement (LOCR) and perceived knowledge of and skill in using various categories of environmentally responsible behavior (ERB) have been frequently cited as correlates of self-reporting of participation in ERB. What has not been extensively investigated is the impact of various interventions on these variables. A few studies of limited generalizability have attempted such an assessment, reporting findings of no impact. Results of this study appear to refute previous findings. Students completing an environmental studies course displayed statistically significant gains, that is, a more internally oriented LOCR for ERB, a higher perception of their knowledge of and skill in using categories of ERB, and a higher degree of self-report of participation in ERB than did students not completing such a course.