Toward a Unified Theory of Group Connection

Behavioral scientists have long been struck by the human tendency to connect with other individuals and groups. Three major approaches to group connection have been advanced: ( a ) the social cohesion approach, ( b ) the social identity approach, and ( c ) identity fusion theory. While each approach has garnered support, no one has attempted to integrate them. We address the need for integration by proposing a general theoretical framework that specifies the unique contributions of each approach, identifies the psychological phenomena each best explains, and reconciles theoretical inconsistencies. We then propose a network model that spells out how different aspects of the self-concept, in accordance with key insights from the three approaches, engender group connection.

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Publication Details

Journal
Annual Review of Psychology
Published
2026-09-29
DOI
https://doi.org/10.1146/annurev-psych-020226-033620
Primary Topic
Mental Health Research Topics
Type
article
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article

Toward a Unified Theory of Group Connection

Matthew J. Hornsey, Jack W. Klein, William B. Swann, William Bingley
Annual Review of Psychology
Mental Health Research Topics
article

Toward a Unified Theory of Group Connection

Matthew J. Hornsey, Jack W. Klein, William B. Swann, William Bingley
article en

Abstract

Behavioral scientists have long been struck by the human tendency to connect with other individuals and groups. Three major approaches to group connection have been advanced: ( a ) the social cohesion approach, ( b ) the social identity approach, and ( c ) identity fusion theory. While each approach has garnered support, no one has attempted to integrate them. We address the need for integration by proposing a general theoretical framework that specifies the unique contributions of each approach, identifies the psychological phenomena each best explains, and reconciles theoretical inconsistencies. We then propose a network model that spells out how different aspects of the self-concept, in accordance with key insights from the three approaches, engender group connection.

Annual Review of Psychology
The University of Queensland (AU), The University of Melbourne (AU), Flinders University (AU), Chinese University of Hong Kong (HK), University of Oregon (US), Victorian Curriculum and Assessment Authority (AU), The University of Texas at Austin (US)
Reduced inequalities
Openalex Percentile: Top 8%
Mental Health Research Topics
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Toward a Unified Theory of Group Connection — Matthew J. Hornsey, Jack W. Klein, et al. · Annual Review of Psychology (2026) | TGRS Research Map | TGRS