People tend to select romantic partners who belong to the same social group as themselves (i.e., endogamy). However, there is limited research on the proximal psychological motivations for choosing endogamous relationship partners. The purpose of this research was to develop a measure of motivations for endogamous relationship preferences and to assess whether such motivations were associated with actual dating experiences and attitudes toward endogamy across four common social categories: race and/or ethnicity, religion, social class, and education. Data from an online sample of participants (Study 1, n = 341) were used to generate items assessing motivations for endogamous relationship preferences. This initial set of items was administered to a new sample of participants (Study 2, n = 193) to establish the component structure of the measure and to examine whether the motivational components were associated with participants’ past exogamous dating experiences as well as the perceived importance of dating within one’s own racial and/or ethnic, religious, socioeconomic, and educational group. Endogamy motivations characterized by intergroup prejudice were the strongest and most consistent correlates of endogamous relationships and the perceived importance of endogamy. Study 3 (n = 332) replicated the component structure of the measure and the general pattern of associations documented in Study 2, and provided evidence for the measure’s construct validity. The overall findings suggest that intergroup prejudice partially explains preferences for endogamous relationships.

人们倾向于选择与自己属于同一社会群体的浪漫伴侣（即同族通婚）。然而，关于选择同族关系伴侣的近端心理动机的研究有限。本研究的目的是开发一种衡量同族关系偏好动机的方法，并评估这些动机是否与四个常见社会类别的实际约会经历和对同族婚姻的态度相关：种族和/或族裔、宗教、社会阶层和文化。教育。来自参与者在线样本（研究 1，n = 341）的数据用于生成评估同族关系偏好动机的项目。这组初始项目被分配给新的参与者样本（研究 2，n = 193），以建立测量的成分结构，并检查动机成分是否与参与者过去的异族约会经历以及感知到的相关。在自己的种族和/或民族、宗教、社会经济和教育群体内约会的重要性。以群体间偏见为特征的内婚动机是内婚关系和内婚重要性认知的最强和最一致的相关因素。研究 3 (n = 332) 复制了研究 2 中记录的测量的组成结构和一般关联模式，并为测量的构建有效性提供了证据。总体研究结果表明，群体间偏见部分解释了对同族婚姻关系的偏好。