The influence of the Athens (Georgia) Tutorial Program upon the academic achievement of 256 low socioeconomic students in grades 3-8 was studied. The study covered a 3-year period. Results showed the positive impact of the program, but accurate evaluation was not possible because complete records were not available. (JAZ)

Because of limitations in simple gain scores, pychometrists have proposed alternate methods for measuring change, two of which are residualized difference and base-free change. This paper provides large sample empirical estimates of the reliability these change measures. It checks theoretical predictions derived from inequalities involving all…

This study investigates the relationship between the length of the school year and student achievement on standardized tests. Achievement scores of students from two different school systems were analyzed. Comparisons showed that increasing the length of the school year would not produce marked change in test scored performance. (Author/JAZ)