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Ethnic Identity Centrality Across the Adult Lifespan: Aging, Cohort, and
Period Effects Among Majority and Minority Group Members
Maykel Verkuyten
1
, Kumar Yogeeswaran
2
, Elena Zubielevitch
3
, Kieren J. Lilly
4
, Mark Vanderklei
2
,
Danny Osborne
4
, and Chris G. Sibley
4
1
Faculty of Social and Behavioural Sciences, European Research Center on Migration and Ethnic Relations, Utrecht University
2
Department of Speech and Hearing, School of Psychology, University of Canterbury
3
Faculty of Business, Economics and Law, Business School, University of Queensland
4
School of Psychology, University of Auckland
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 uniq ue
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.
Keywords: ethnic identity, racial identity, development, lifespan, adult
Supplemental materials: https://doi.org/10.1037/pspp0000513.supp
Although ethnic diversity is a historical feature of many societies,
globalization has led toa rapid increase in this diversity. Accordingly,
questions of ethnic and racial equality, equity, and inclusion have
become prominent in many societies around the world (Chaika & de
Haas, 2015;McKenzie, 2019). It is no surprise, then, that “ethnic
identity”is a focal topic of research in a wide range of disciplines,
including political science, anthropology, and sociology, as well
as developmental, clinical, educational, and social psychology.
However, little is known about how ethnic identity changes across
the lifespan and in relation to the social environment. This oversight
is surprising because personal and social identity development are
central features of adolescence (Erikson, 1968;Phinney, 1989) but
are also theorized to evolve throughout the lifespan due to social
role transitions and emotional and cognitive changes linked with
the aging process (Kroger & Green, 1996). Likewise, personal
and social identity development and changes are embedded in,
and shaped by, social contexts (Crocetti et al., 2022;Seaton et al.,
2017;Tajfel & Turner, 1979). For example, contemporary societal
circumstances and events can precipitate changes in identity across
the population (i.e., period effects), while shared historical conditions
during one’s younger, formative years can have a lasting impact on
identity and create stark generational differences (i.e., cohort effects;
Fadjukoff & Kroger, 2016;Kroger, 2007). Understanding the
age-related and societal factors that shape ethnic identity is critical
This document is copyrighted by the American Psychological Association or one of its allied publishers.
This article is intended solely for the personal use of the individual user and is not to be disseminated broadly.
This article was published Online First July 18, 2024.
Joanne M. Chung served as action editor.
Maykel Verkuyten https://orcid.org/0000-0003-0137-1527
The New Zealand Attitudes and ValuesStudy (NZAVS) is fundedby a grant
from the Templeton Religion Trust (Grant TRT-2021-10418) awarded to
Chris G. Sibley. The data described in the article are part of the NZAVS. Full
copies of the NZAVS data files are held by all members of the NZAVS
management team and advisory board. A deidentified data set containing the
variables analyzed in this article is available upon request from Chris G. Sibley
or any member of the NZAVS advisory board for replication or checking of any
published study using NZAVS data. More information about the NZAVS can
be found at https://osf.io/75snb/wiki/home/. The study was not preregistered.
Maykel Verkuyten played a lead role in conceptualization and writing–original
draft and an equal role in writing–review and editing. Kumar Yogeeswaran
played a supporting role in conceptualization and investigation and an equal
role in writing–review and editing. Elena Zubielevitch played an equal
role in formal analysis, methodology, and visualization. Kieren J. Lilly
played an equal role in formal analysis, methodology, and visualization.
Mark Vanderklei played an equal role in writing–review and editing. Danny
Osborne played a supporting role in formal analysis and writing–original
draft. Chris G. Sibley played a lead role in data curation and funding
acquisition and an equal role in methodology and supervision.
Correspondence concerning this article should be addressed to Maykel
Verkuyten, Faculty of Social and Behavioural Sciences, European Research
Center on Migration and Ethnic Relations, Utrecht University, P.O. Box
80.140, 3508 TC Utrecht, The Netherlands. Email: m.verkuyten@uu.nl
Journal of Personality and Social Psychology:
Personality Processes and Individual Differences
© 2024 American Psychological Association 2024, Vol. 127, No. 3, 684–701
ISSN: 0022-3514 https://doi.org/10.1037/pspp0000513
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