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Factoral comparison of the Iowa-Brace Motor Educability Test and a test of general mental ability Cushing, Elizabeth Jane

Abstract

The California Test of Mental Maturity - Long Form Level 2 and the Iowa-Brace Test of Motor Educability were administered to 112 girls from grade five classes in seven randomly selected city schools of Vancouver, British Columbia. The scores obtained on both tests were slightly higher than those expected in the normal population. A small positive relationship (0.30) was found between total Iowa-Brace scores and total IQ. The correlation of the Non-Language Section IQ of the California Test of Mental Maturity with Iowa-Brace total score was significantly (0.02) higher than that obtained when the Language section IQ was correlated with total Iowa-Brace. Principal component analysis of the Iowa-Brace Test isolated five factors accounting for 6.7 per cent of the test variance. Only one of these factors showed any relationship to the five factors of the California Test of Mental Maturity. Factor V showed low positive correlations with the Logical Reasoning and Spatial Relations factors. No practically useful relationship seems to exist between the Iowa-Brace Motor Educability Test and the California Test of Mental Maturity.

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