Fralley J S, Eliot J, Dayton C M
Percept Mot Skills. 1978 Dec;47(3 Pt 2):1023-9. doi: 10.2466/pms.1978.47.3f.1023.
Two measures of spatial ability were administered to 319 undergraduates, 93 parents, and 62 siblings. Although males outperformed females on both tests, the resulting correlational pattern did not conform to the trait pattern hypothesized on the basis of an X-linked recessive trait. Results from a pedigree analysis, however, were in the expected direction. The inclusion of pedigree analyses is urged in future research.
对319名本科生、93名家长和62名兄弟姐妹进行了两项空间能力测试。虽然在两项测试中男性的表现都优于女性，但由此产生的相关模式并不符合基于X连锁隐性性状假设的性状模式。然而，系谱分析的结果却符合预期方向。今后的研究应考虑纳入系谱分析。
