Activity Level and Motor Inhibition: Their Relationship to Intelligence-Test Performance in Normal Children.

Loo, CHALSA, and WENAR, CHARLES. Activity Level and Motor Inhibition: Their Relationship to Intelligence-Test Performance in Normal Children. CHILD DEVELOPMENT, 1971, 42, 967-971. Activity level was not found to be correlated with motor inhibition, impulsivity, or IQ, while motor inhibition was significantly correlated with IQ but not with impulsivity. Significant interactive effects for activity level and motor inhibition on intelligence-test performance were found. The lowest mean IQ was found in the low active, low motor inhibition group; a higher IQ was associated with an increase in activity level or an increase in motor inhibition.