Hardyck C, Petrinovich L F, Goldman R D
Cortex. 1976 Sep;12(3):266-79. doi: 10.1016/s0010-9452(76)80008-1.
Intellectual and performance measures were taken on 7688 school children tested on three behavioral measures of handedness and one measure of eyedness. Test results were compared against all combinations of handedness and eyedness and against a measure of socio-economic level. No relationships of any kind were found. Comparisons of the present results are made against 33 studies concerned with possible deficits associated with left-handedness. The results of the present study combined with a review of the majority of studies on deficit and handedness strongly suggest that the hypothesis of no difference in intellectual and cognitive performance between right- and left-handed subjects can be accepted as true.
对7688名在校儿童进行了智力和行为测试，这些测试涉及三种利手行为测量方法和一种利眼测量方法。将测试结果与利手和利眼的所有组合以及社会经济水平测量结果进行了比较。未发现任何类型的关联。将本研究结果与33项关于左利手可能存在的缺陷的研究进行了比较。本研究结果与对大多数关于缺陷和利手的研究的综述相结合，强烈表明可以接受右利手和左利手受试者在智力和认知表现上没有差异这一假设为真。
