Does social identity theory underlie relational demography? A test of the moderating effects of uncertainty reduction and status enhancement on similarity effects
研究检验了社会认同理论的两个主要动机（不确定性降低和地位提升）如何调节人口统计相似性与员工对工作群体情感反应之间的关系，发现自我连续性调节了种族相似性与凝聚力，地位提升调节了种族和性别相似性对群体结果的影响。
Relational demography research has its roots in social identity theory. However, prior research has not directly tested the effects of the two primary motives of social identification; uncertainty reduction and status enhancement. In this study, we examined the moderating effects of these motives on the relationship between demographic similarity and individuals’ affective reactions toward their work group. Uncertainty reduction, which we operationalized as self-continuity, moderated the relationship between race similarity and cohesiveness. In addition, status enhancement moderated both race and gender similarity effects on the group outcomes. We discuss implications of our findings for theory and research.