Matheny A P, Wilson R S, Dolan A B
Behav Genet. 1976 Jul;6(3):343-51. doi: 10.1007/BF01065729.
Questionnaires rating twins' physical similarity and similarity of dress were obtained from the parents of 121 identical and 70 same-sex fraternal twin pairs. Within-pair difference scores on several behavioral measures (two intelligence tests, two perceptual tests, one reading test, one test of speech articulation, and one personality inventory) were correlated with the twins' scores for physical similarity and similarity of dress. The correlations revealed no systematic relation between the similarity of appearance and the similarity of behaviors for either the identical twin pairs or the same-sex fraternal twin pairs. The assumption that twins' behaviors are more alike because they are more similar in appearance does not seem warranted.
我们从121对同卵双胞胎和70对同性异卵双胞胎的父母那里获取了有关双胞胎身体相似度和穿着相似度的调查问卷。对几项行为测量指标（两项智力测试、两项感知测试、一项阅读测试、一项言语清晰度测试和一项人格量表）的配对差异分数与双胞胎的身体相似度和穿着相似度得分进行了相关性分析。相关性分析表明，无论是同卵双胞胎对还是同性异卵双胞胎对，外貌相似度与行为相似度之间均不存在系统关系。双胞胎行为更相似是因为他们外貌更相似这一假设似乎并不成立。
