This report consists of an evaluation of the effects of introducing the Intermediate Science Curriculum Study (ISCS) Level One curriculum into the classes of ISCS Institute participants. Participants were compared with a control group on the basis of results obtained from the Classroom Activity Checklist, Student Inventory, Scientific Attitude Inventory, Self-Reliance Test, and the Subject Preference Ranking. Twelve hypotheses were tested. Some of the ISCS objectives were not met by Level One of the program, which might make it difficult to achieve the objectives of the other two ISCS levels. (CP)