Willerman L, Loehlin J C, Horn J M, Scarr S, Weinberg R A
Behav Genet. 1980 Jul;10(4):431-4. doi: 10.1007/BF01065606.
To test the hypothesis that examiner differences influence family correlations in adoption studies of intelligence, data from two recent adoption studies were reanalyzed as a function of whether the same or different examiners tested both members of a pair. While each study yielded trends suggesting examiner effects on correlations, results of the two studies were directly counter to each other. Our conclusion is that examiner effects are not yet predictable and, overall, cannot be demonstrated to bias adoption studies of intelligence.
为检验在智力收养研究中主试差异会影响家庭相关性这一假设，对两项近期收养研究的数据重新进行了分析，分析依据是同一对被试的两名成员是否由同一名主试或不同主试进行测试。虽然每项研究都呈现出表明主试效应会影响相关性的趋势，但两项研究的结果却截然相反。我们的结论是，主试效应尚不具有可预测性，而且总体而言，无法证明其会使智力收养研究产生偏差。
