Modeling Homophily over Time with an Actor-Partner Interdependence Model

Selection and socialization have been implicated in friendship homophily, but the relative contributions of each are difficult to measure simultaneously because of the nonindependent nature of the data. To address this problem, the authors applied a multiple-groups longitudinal actor-partner interde...

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Bibliographic Details
Published inDevelopmental psychology Vol. 44; no. 4; pp. 1028 - 1039
Main Authors Popp, Danielle, Laursen, Brett, Kerr, Margaret, Stattin, Hakan, Burk, William J
Format Journal Article
LanguageEnglish
Published United States American Psychological Association 01.07.2008
Subjects
Adolescent
Adolescents
Alcohol Abuse
Alcoholic Intoxication - epidemiology
Alcoholic Intoxication - psychology
Choice Behavior
Congruence (Psychology)
Cross-Sectional Studies
Drinking
Female
Females
Foreign Countries
Friends - psychology
Friendship
Humans
Incidence
Interpersonal Communication
Longitudinal Studies
Male
Males
Models, Psychological
Selection
Social Behavior
Social Facilitation
Social Identification
Socialization
Sociometric Techniques
Sweden
Sweden
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Summary:Selection and socialization have been implicated in friendship homophily, but the relative contributions of each are difficult to measure simultaneously because of the nonindependent nature of the data. To address this problem, the authors applied a multiple-groups longitudinal actor-partner interdependence model (D. A. Kashy & D. A. Kenny, 2000) for distinguishable dyads to 3 consecutive years of intoxication frequency data from a large community-based sample of Swedish youth. Participants, ranging from 12 to 18 years old (M = 14.35, SD = 1.56) at the start of the study, included 902 adolescents (426 girls and 476 boys) with at least one reciprocated friend during at least one time point and 212 adolescents (84 girls and 128 boys) without reciprocated friends at any time. Similarity estimates indicated strong effects for selection and socialization in friends' intoxication frequency. Over time, younger members of these dyads had less stable patterns of intoxication than older members, largely because younger partners changed their drinking behavior to resemble that of older partners. (Contains 10 figures, 1 footnote, and 2 tables.)
ISSN:0012-1649
DOI:10.1037/0012-1649.44.4.1028