Five groups of college students, each of which had undergone a different high school biology experience, were tested with the Biological Sciences Curriculum Study (BSCS) Comprehensive Final Examination to obtain data on the lasting effects of the BSCS biology courses. The analysis of variance approach indicated highly significant differences among the five groups. However, examination of the five means shows that the differences are not great enough to have clear educational meaning. The predicted scores raise questions about the effectiveness of either the BSCS courses, the BSCS examination, or both. (Author)