Login | Register

Homotypic and Heterotypic Peer Influence Effects for Aggression and Help, During Early Adolescence. The Role of Friends and Peers

Title:

Homotypic and Heterotypic Peer Influence Effects for Aggression and Help, During Early Adolescence. The Role of Friends and Peers

Castellanos Arredondo, Melisa ORCID: https://orcid.org/0000-0002-6980-0845 (2019) Homotypic and Heterotypic Peer Influence Effects for Aggression and Help, During Early Adolescence. The Role of Friends and Peers. PhD thesis, Concordia University.

[img]
Preview
Text (application/pdf)
Castellanos Arredondo_PhD_S2020.pdf - Accepted Version
Available under License Spectrum Terms of Access.
2MB

Abstract

This dissertation reports the results from two studies conducted with a sample of 1595 fourth, fifth and sixth graders from nine schools in Bogotá, Colombia (Mage= 10.25 years), who completed peer nomination measures of social behaviours at two measurement points. The main objective was to examinee homotypic (i.e. the effect of early adolescents’ behaviours on one dimension on the same dimension measured for their friend at a later time) and heterotypic peer effects (i.e. the effect of early adolescents’ behaviours at an initial time on their friend’s subsequent levels on another behaviour) among stable dyadic friendship relationships. Specifically, two types of aggressive behaviour (physical and relational) and one type of prosocial behaviour (help) were analyzed. Additionally, the moderating roles of gender, popularity and group norms were examined.
A structural equation modelling approach was used to achieve the objectives. Specifically, the Actor-Partner Interdependence Model (APIM) was used to estimate peer effects at the dyadic level, and Latent Profile Analyses were used to explore salience group norms at the classroom level context. Moreover, these peer effects were compared by gender, popularity and classroom salience norms (i.e. classroom-level association between popularity and the behaviours).
It was observed that the two types of aggressive behaviour, as well as help, increased as a function of the best friend’s level of those behaviours. Moreover, it was demonstrated that peer heterotypic influence effects did not occur between help and physical aggression, while friends’ levels of relational aggression predicted increases in pre-adolescents’ levels of help. Structural multi-group comparisons revealed that the most popular pre-adolescents exerted a larger influence on their best friends’ aggressive behaviour. In addition, girls seemed more prone to friend’s influence for aggression whereas boys were exclusively prone to increase their levels of help as a result of engaging in friendships with physically aggressive peers.
Regarding the moderator role of salience norms, the results revealed that homotypic peer influence effects of physical aggression and help were stronger in classrooms in which these behaviours were equally salient. Similarly, heterotypic peer effects among relational aggression and help occurred only in these types of classrooms.

Divisions:Concordia University > Faculty of Arts and Science > Psychology
Item Type:Thesis (PhD)
Authors:Castellanos Arredondo, Melisa
Institution:Concordia University
Degree Name:Ph. D.
Program:Psychology
Date:August 2019
Thesis Supervisor(s):Bukowski, William M.
Keywords:Prosocial behaviour, Aggression, Peer Effects.
ID Code:986119
Deposited By: Melisa Castellanos Arredondo
Deposited On:25 Jun 2020 17:59
Last Modified:25 Jun 2020 17:59
All items in Spectrum are protected by copyright, with all rights reserved. The use of items is governed by Spectrum's terms of access.

Repository Staff Only: item control page

Downloads per month over past year

Research related to the current document (at the CORE website)
- Research related to the current document (at the CORE website)
Back to top Back to top