Relationships among Handedness, Intelligence, Sex, and Reading Achievement of School Age Children

Abstract
The present study sampled 277 boys and girls, Grades 3 to 12, to determine the interaction among handedness, sex, intelligence, and reading achievement. When controlling for IQ, grade level, handedness, and sex there were no significant differences in mean reading achievement. When controlling for sex, handedness, and grade level there were no significant differences in mean IQs. Significant interaction was found between IQ and reading achievement, correlations between IQ and reading achievement among left-handers were significantly lower than among right-handers.

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