
The possibility that Spearman's Hypothesis is a statistical artifact is tested with studies of deaf children's intelligence. Six published and unpublished sources yielded 37 instances in which the magnitude of deaf-hearing differences, and the g loading of the test for deaf children, could be determined on intelligence tests. The magnitude of differences between deaf and normal-hearing children are negatively correlated with g loadings (r = −.14, NS), and are significantly different from positive correlations reported for black-white differences (zs > 2.51, ps < .01). Post hoc analyses show the lack of positive relationship between deaf-hearing differences and g loadings is consistent across psychometric and subject samples. The results clearly refute Schonemann's (1985) proposal that the positive relationship between black-white differences and g loadings is a statistical artifact, and the results provide evidence of divergent validity for Spearman's Hypothesis.
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| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Top 10% | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
