Division of Mental Health, Norwegian Institute of Public Health, P.O. Box 4404, Nydalen, 0403 Oslo, Norway.
Behav Genet. 2013 Mar;43(2):108-19. doi: 10.1007/s10519-012-9578-2. Epub 2012 Dec 22.
Earlier studies have shown evidence for various sources of observed spousal similarity regarding different traits and characteristics. We explored the relative contribution of non-random mating and convergence to spouse similarity with respect to global mental health, life satisfaction, optimism, and type A personality. We used population-based data collected for the Nord-Trøndelag Health Study (1984-1986) and prospective registry information about when and with whom people entered into marriage/cohabitation between 1970 and 2000 for 19,599 married/cohabitating couples and 1,551 future couples that entered into marriage/cohabitation during the 16 years after data collection. Couples were categorized by interval between data collection and entry into marriage/cohabitation. Age-adjusted polychoric correlations calculated for each group were used as the dependent variables in non-linear, segmented regression analysis, with time since or until marriage/cohabitation as the independent variable. Initial correlations between partners-to-be were low to moderate, typically around one-half of the values estimated in existing couples, indicating both non-random mating and early convergence. There appeared to be moderate divergence during the first 20 years of marriage/cohabitation and moderate convergence during the rest of life.
早期研究已经证明了不同特质和特征的配偶相似性存在多种来源。我们探讨了非随机交配和趋同对于整体心理健康、生活满意度、乐观主义和 A 型人格等方面配偶相似性的相对贡献。我们使用了基于人群的 Nord-Trøndelag 健康研究（1984-1986 年）的数据，并利用前瞻性登记信息，了解了人们在 1970 年至 2000 年间何时以及与谁结婚/同居，并在数据收集后的 16 年内对 19599 对已婚/同居的夫妇和 1551 对未来的夫妇进行了研究。根据数据收集和结婚/同居之间的时间间隔对夫妇进行分类。对于每个组，计算了年龄调整后的多相关系数，作为非线性分段回归分析的因变量，以婚姻/同居的时间间隔为自变量。潜在伴侣之间的初始相关性较低到中等，通常接近现有伴侣中估计值的一半，这表明存在非随机交配和早期趋同。在婚姻/同居的头 20 年似乎存在中度分歧，而在余生中则存在中度趋同。
