The problem was to see what is the effect on achievement when Psychology I classes are sectioned into three intelligence levels, there being no systematic plan for varying the instruction for the different groups. This experiment was carried out in Iowa State Teachers College in the fall of 1926.
Proceedings of the Iowa Academy of Science
©1927 Iowa Academy of Science, Inc.
Brown, A. E.
"Effects of Sectioning in Psychology I,"
Proceedings of the Iowa Academy of Science, 34(1), 308-311.
Available at: https://scholarworks.uni.edu/pias/vol34/iss1/104