Langinvainio H, Kaprio J, Koskenvuo M, Lönnqvist J
Acta Genet Med Gemellol (Roma). 1984;33(2):259-64. doi: 10.1017/s0001566000007303.
This study is based on data from 165 adult twin pairs separated at 10 years or less. Information on personality factors: extraversion (E) and neuroticism (N) (EPI scale short from), life satisfaction (LS) (Allardt) and stress of daily activities (SDA) was obtained as part of the questionnaire study carried out in the entire Finnish Twin Cohort in 1975. Later in 1979 a questionnaire sent to the twins reared apart yielded a scale (range 7-30 points) measuring the environmental dissimilarities after separation (reliability 0.83). The effect of separation on personality factors by analysis of variance of individual data was studied. Sex, zygosity and age-at-separation were included in the models. The overall explanatory rates were low (2.1-4.4%). The definitive study group was formed by selecting those pairs with a dissimilarity score greater than 15. The following intraclass correlations were obtained.
本研究基于165对在10岁及以下时就分离的成年双胞胎的数据。作为1975年在整个芬兰双胞胎队列中进行的问卷调查研究的一部分，收集了关于人格因素的信息：外向性（E）和神经质（N）（EPI量表简版）、生活满意度（LS）（阿拉特量表）以及日常活动压力（SDA）。1979年晚些时候，向分开抚养的双胞胎发放了一份问卷，得出了一个衡量分离后环境差异的量表（范围为7 - 30分）（信度为0.83）。通过对个体数据进行方差分析，研究了分离对人格因素的影响。模型中纳入了性别、合子性和分离时的年龄。总体解释率较低（2.1 - 4.4%）。最终的研究组是通过选择那些差异得分大于15的双胞胎对组成的。得到了以下组内相关系数。
