Test performance of full and mixed-blood North Dakota Indians

Test performance of full and mixed-blood North Dakota Indians

Journal of Comparative Psychology
Volume 14, Number 1 (August 1932)
pages 123-145
DOI: 10.1037/h0069966

C. W. Telford

225 Indian pupils scattered through the kindergarten to the sixth grade, inclusive, were given the Goodenough intelligence test. The average IQ of the Indian children was 88, as compared with 100 for whites and 77-79 for negroes. The rational learning test, the mare and foal test, and the Healy puzzle “A” test were given to 35 12-year-olds. The Indians were superior to whites on the mare and foal test. On the Healy “A” test they were intermediate between whites and negroes. This was true for the rational learning test. The differences between Indians and whites were greater for speed than accuracy. There was no correlation of any significance between performance and amount of Indian blood.

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