Department of Educational Psychology, Keio University
Department of Educational Psychology, Keio University
1977 Volume 19 Issue 2 Pages 56-67
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Under four types of instructional treatments, Text-Numerical, Text-Graphical, Program-Numerical and Program-Graphical, junior high school pupils were presented a learning task of understanding a formula to summate arithmetic progression. Aptitude treatment interactions were examined by taking two aptitude informations into consideration simultaneously, and optimal treatments were determined in the three-dimensional space of two aptitudes and one payoff. Significant interaction of general intelligence × GAT×Text-Program, for example, was identified by multiple regression analysis. The plane, whose co-ordinates are general intelligence and GAT, was divided into three regions of optimal treatments, Text-Numerical, Text-Graphical and Program-Numerical. Payoffs of four types of treatments and optimized treatments were compared, and several other points in ATI research were discussed.