This study investigated the possible causes of the contradiction between the results of two projects. Indiana's Prime Time project compared the achievement of students in large (averaging 26 students) and small (averaging 19 students) classrooms in grades 1 through 3. Results indicated that 3 years in smaller classes had little effect on student…

Discusses research (Tennessee Study of Class Size) that determined the effects of smaller class size in the earliest grades on short- and long-term pupil performance. The 4-year study assessed the performance of over 6,500 students who attended K-3 classrooms having differing numbers of students and found evidence of short- and long-term benefits…