Integrated quantitatively the collective research dealing with the effects of the Intermediate Science Curriculum Study (ISCS) on student performance and attitude. The weighted mean effect size was 0.09, indicating that the performance of ISCS students was 0.09 standard deviations about the performance of students in traditional science courses.…

Student outcomes were assessed by quantitatively combining results of 57 reported evaluations of three major curriculum programs in elementary school science. Thirty-two percent of the comparisons were statistically significant, favoring activity-based programs; six percent favored control groups. (DH)

Examined Biological Sciences Curriculum Study (BSCS) programs showing how they compare to each other and other science programs and how various student groups performed. Student comparisons were made by sex, IQ, ability grouping, and socioeconomic status. Teacher background, school size and location were also examined. Summary and recommendations…