An Exploratory Study of the Interrelations among Driving Ability, Driving Exposure, and Socioeconomic Status of Low, Average, and High Intelligence Males

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Abstract
Official driving records of educable mentally retarded individuals were compared with records of individuals with normal or above intelligence to study the relationship of intelligence and socioeconomic status to driving ability and driving habits. Generally, intelligence and socioeconomic status did appear to be influencing factors in the total number of violation points accumulated over a five year period. However, inspection and analysis of driving records indicated that subjects from high socioeconomic groups received more speeding violations than the low groups, and that low intelligence subjects had more points for violations, other than speeding, than the average and above average intelligence groups. The low intelligence group differed significantly from an average group on the factors of combined accidents and violations. However, the low intelligence group did not differ significantly from the high intelligence groups on these same factors.

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