一卵双生児による知能構造の研究(其の一) : 知能と性格との干渉をめざして

概要

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In recent studies, P. Stocks, M. N. Karm (r=0.84), H. H. Newman, N. F. Freeman, K. G. Holzinger(r=0.88) and K. Otaira (r=0.902) report that there is a high correlation between identical twins. By means of the WISC full test in measuring their intelligence, the author has found that the correlation between 80 pairs shows 0.87. Let us consider, then, what will happen in the study of WISC sub-tests, that is Information Comprehension, Arithmetic, Similarities, Vocabulary, Picture completion, Picture arrangement, Block design, Object assembly, Digit symbol, Verbal I.Q. and Performance I.Q. on identical twin's intelligence. The author tested 80 pairs, 6-12 years of age consisting of 42 male pairs and 38 female ones living in the same families. The Comprehension, Picture completion and Object assembly were all statistically significant, but no significant difference was found in each sub-test of Vocabulary, Arithmetic, Information, Block design. That is, on even identical twins living in the same families, the data indicate that Comprehension, Picture completion and Object assembly are especially affected by a variety of emotional, environmental and other conditions.
日本教育心理学会の論文
1957-05-20