THE MINNESOTA TWIN FAMILY REGISTRY

1936年至1955年在明尼苏达州出生的所有双胞胎都将是 通过出生记录确认身份。至少80%的人 完好无损的配对将被招募参加 明尼苏达州双胞胎家庭登记处。我们预计招聘4,200人 同性双胞胎和1000对异性双胞胎，4000对 参与活动的双胞胎的配偶，以及至少500个双胞胎家庭 由双胞胎和他们的配偶组成，至少一个后代 每个双胞胎兄弟姐妹，在某些情况下， 双胞胎和/或双胞胎的父母。双胞胎招募是由 分级激励，这样我们就可以在人口统计学上比较， 兴趣，和个性变量，很容易的相似性 双胞胎之一或双胞胎都是的配对 不愿意参与，也就是说，双胞胎通常不被研究。全 受试者将完成一份传记问卷，包括 健康、教育、职业和合伙信息，最多 受试者还将完成一系列个性和兴趣 库存。作为明尼苏达州双胞胎养育研究的一部分 此外，同样的措施正在从100对 婴儿时期分开抚养的双胞胎，与领养人分开抚养 这对双胞胎中有50个是兄弟姐妹。 数据将被分成4个年龄匹配子样本，以 按复制进行分析。这些数据将提供独一无二的 用模型拟合技术评估亲属的机会 加性遗传、非加性(包括上位性或 “紧急”)遗传变异，共享和非共享的环境 在基本性状上对个体差异的贡献 个性和兴趣。该数据还将允许唯一的 对种类交配、配偶同化和 父母对这些变量的影响。它是 打算将双胞胎家庭登记处作为一个 持续研究资源。

All twins born in Minnesota from 1936 through 1955 will be identified through birth records. At least 80 percent of the surviving intact pairs will be recruited to participate in the Minnesota Twin-Family Registry. We expect to recruit 4,200 pairs of same-sex and 1,000 pairs of opposite-sex twins, 4,000 spouses of participating twins, and at least 500 twin families consisting of both twins and their spouses, at least one offspring of each twin and, in some cases, pairs of same-sex siblings of the twins and/or both parents of the twins. Twin recruiting is by graded incentive so that we can compare, on demographic, interest, and personality variables, the similarity of easily recruited pairs with that of pairs in which one or both twins are reluctant to participate, i.e., twin pairs not usually studied. All subjects will complete a Biographical Questionnaire including health, education, occupation, and zygosity information, most subjects will also complete a battery of personality and interest inventories. As part of the Minnesota Study of Twins Reared Apart, the same measures are being obtained from 100 pairs of twins separated in infancy and reared apart and from the adoptive siblings of 50 of these twins. The data will be grouped into 4 age-match sub-samples to be analyzed by replication. These data will provide a unique opportunity for assessing by model-fitting techniques the relative importance of additive genetic, nonadditive (including epistatic or "emergenic") genetic variance, shared and unshared environmental contributions to individual differences in basic traits of personality and interest. The data will also permit a unique assessment of assortative mating, spousal assimilation, and parental influences in respect to these same variables. It is intended that the Twin-Family Registry will be maintained as a continuing research resource.