Ethnic identity is a major area of study across many disciplines including psychology, sociology, anthropology, and political science. Yet, little is known about changes in ethnic identity across the adult lifespan, and whether such changes are driven by normal aging processes (aging effects), unique societal influences linked with one's formative years (cohort effects), or social changes during a specific time frame (period effects). We address these key oversights by utilizing 13 annual waves of longitudinal panel data from a nationwide random sample of both ethnic majority (N = 49,660) and Indigenous ethnic minority (N = 8,325) group members in New Zealand to examine changes in ethnic identity centrality using cohort-sequential latent growth modeling. This approach helps to identify changes in mean levels of ethnic identity centrality over time and whether such changes are driven by aging, cohort, and/or period effects. Our data reveal that, among both ethnic majority and ethnic minority individuals, changes in ethnic identity centrality were informed by a combination of normative aging processes, societal circumstances that reflected the unique historical context in which people grew to maturity, and societal changes during the 13 annual assessments of our study. Collectively, these results demonstrate for the first time that ethnic identity centrality in adulthood is subject to lifelong changes. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

中文翻译：

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种族身份在成人生命周期中的中心性：多数和少数群体成员的衰老、队列和时期影响。


种族认同是许多学科的主要研究领域，包括心理学、社会学、人类学和政治学。然而，人们对成年后种族身份的变化知之甚少，以及这种变化是由正常的衰老过程（衰老效应）、与一个人的成长期相关的独特社会影响（群体效应）还是特定时间范围内的社会变化（时期效应）驱动的。我们利用来自新西兰多数族裔 （N = 49,660） 和土著少数族裔 （N = 8,325） 群体成员的全国随机样本的 13 波年度纵向面板数据来解决这些关键疏忽，以使用队列顺序潜在增长模型检查种族身份中心性的变化。这种方法有助于确定种族身份中心性平均水平随时间的变化，以及这种变化是否由衰老、队列和/或时期效应驱动。我们的数据显示，在多数族裔和少数族裔个体中，种族身份中心性的变化是由规范的老龄化过程、反映人们成长成熟的独特历史背景的社会环境以及我们研究的 13 次年度评估中的社会变化共同决定的。总的来说，这些结果首次表明，成年后的种族身份中心地位会发生终生变化。（PsycInfo 数据库记录 （c） 2024 APA，保留所有权利）。