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Publications (10 of 12) Show all publications
Gattario, K. H., Valik, A., Lunde, C., Skoog, T. & Jaf, D. (2025). Peer victimization and peer sexual harassment across early adolescence: Branches from the same tree or free-standing constructs?. Journal of research on adolescence, 35(4), Article ID e70079.
Open this publication in new window or tab >>Peer victimization and peer sexual harassment across early adolescence: Branches from the same tree or free-standing constructs?
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2025 (English)In: Journal of research on adolescence, ISSN 1050-8392, E-ISSN 1532-7795, Vol. 35, no 4, article id e70079Article in journal (Refereed) Published
Abstract [en]

Researchers have debated whether peer victimization and peer sexual harassment (PSH) are branches from the same tree and/or whether they are different constructs; yet no previous study has been able to clarify this issue. We used exploratory structural equation modeling to examine three different, theoretically informed ways of conceptualizing peer victimization and PSH. Annual three-wave questionnaire data included 997 participants at T1 (M age = 10.0 years, SD = 0.3). Results indicated that peer victimization and PSH should best be viewed as two distinct, yet related constructs - a proposition valid across both time (ages 10-12) and genders. The findings from the present study can inform future research on adolescents' adverse peer experiences.

Place, publisher, year, edition, pages
Wiley-Blackwell Publishing Inc., 2025
Keywords
early adolescence, exploratory structural equation modeling, peer sexual harassment, peer victimization
National Category
Applied Psychology
Identifiers
urn:nbn:se:oru:diva-124192 (URN)10.1111/jora.70079 (DOI)41041898 (PubMedID)2-s2.0-105017592865 (Scopus ID)
Funder
Forte, Swedish Research Council for Health, Working Life and Welfare, 2017–00878
Available from: 2025-10-06 Created: 2025-10-06 Last updated: 2026-01-23Bibliographically approved
Jaf, D., Holmqvist Gattario, K., Geidne, S., Lunde, C. & Skoog, T. (2025). Sexual revictimization by peers in school and organized activity contexts among adolescents: A 3-year longitudinal study. Developmental Psychology, 61(4), 795-810
Open this publication in new window or tab >>Sexual revictimization by peers in school and organized activity contexts among adolescents: A 3-year longitudinal study
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2025 (English)In: Developmental Psychology, ISSN 0012-1649, E-ISSN 1939-0599, Vol. 61, no 4, p. 795-810Article in journal (Refereed) Published
Abstract [en]

Based on sexual revictimization theory, this study investigates the role of individual characteristics (e.g., depression and subjective well-being) and contextual factors (school and organized activities) in the development of sexual harassment revictimization among Swedish Grade 7 (46% girls; Mage = 14.09) adolescents who were followed over 3 consecutive years. The analytic sample comprises adolescents in the school context (T1 N = 678, T2 N = 563, and T3 N = 471) and in organized free-time activity contexts (T1 n = 443, T2 n = 400, and T3 n = 356). Our findings suggest that adolescents with experiences of sexual harassment victimization in Grade 7 were at an increased risk of being sexually revictimized the following 2 years across the two distinct developmental contexts. Further, our results reveal that adolescents are more sexually harassed by their peers in organized activity contexts both concurrently and over time if they were victims of sexual harassment in the school context and the other way around. The findings underscore the need for sexual harassment prevention interventions to consider different developmental contexts simultaneously and to focus on the history of adolescents' experiences of victimization.

Place, publisher, year, edition, pages
American Psychological Association (APA), 2025
Keywords
sexual harassment revictimization, depressive symptoms, subjective well-being, school context, organized activity contexts
National Category
Social Work
Identifiers
urn:nbn:se:oru:diva-114707 (URN)10.1037/dev0001744 (DOI)001300854200001 ()38976440 (PubMedID)2-s2.0-85202747852 (Scopus ID)
Funder
Forte, Swedish Research Council for Health, Working Life and Welfare, 2013-01536
Note

This study was funded by a grant to Therese Skoog from the Swedish Research Council for Sport Science (P2022-0157). The data were collected as part of the Youth and Sports (YeS) project at the Center for Lifespan Developmental Research, Örebro University. The funding was provided by a grant from the Swedish National Board of Health and Welfare (FORTE, 2013-01536). The methods and procedures used as part of the YeS project to collect data were approved by the regional Ethics Review Board in Uppsala, Sweden (DNR: 2015/330). This research was funded in whole, or in part, by the FORTE [Grant 2013-01536].

Available from: 2024-07-09 Created: 2024-07-09 Last updated: 2025-06-03Bibliographically approved
Jaf, D. (2023). Sexual Harassment Revictimization at School and Extracurricular Contexts among Adolescents: a Three-Year Longitudinal [study]. In: : . Paper presented at European Conference on Developmental Psychology (ECDP), Turku, Finland, August 31, 2023.
Open this publication in new window or tab >>Sexual Harassment Revictimization at School and Extracurricular Contexts among Adolescents: a Three-Year Longitudinal [study]
2023 (English)Conference paper, Oral presentation only (Refereed)
National Category
Psychology
Research subject
Psychology
Identifiers
urn:nbn:se:oru:diva-108184 (URN)
Conference
European Conference on Developmental Psychology (ECDP), Turku, Finland, August 31, 2023
Available from: 2023-09-08 Created: 2023-09-08 Last updated: 2023-10-02Bibliographically approved
Jaf, D., Wagnsson, S., Skoog, T., Glatz, T. & Özdemir, M. (2023). The interplay between parental behaviors and adolescents' sports-related values in understanding adolescents' dropout of organized sports activities. Psychology of Sport And Exercise, 68, Article ID 102448.
Open this publication in new window or tab >>The interplay between parental behaviors and adolescents' sports-related values in understanding adolescents' dropout of organized sports activities
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2023 (English)In: Psychology of Sport And Exercise, ISSN 1469-0292, E-ISSN 1878-5476, Vol. 68, article id 102448Article in journal (Refereed) Published
Abstract [en]

Using short-term longitudinal data, the primary goal of the present study was to examine the interplay between adolescents’ sports-related intrapersonal (e.g., sports values) and interpersonal factors (e.g., perceived parental involvement) in relation to sports dropout. A secondary goal was to explore the direction of effects in the association between intra- and interpersonal factors. A total of 420 adolescents (39% girls, Mage = 14.06; SDage = 0.33) responded to a set of survey questions over two consecutive years. Results from structural equation modeling suggested that parental involvement predicted adolescents’ dropout one year later, via sports values. Further, the results suggested that the direction of influence is mainly from parents to adolescents. Overall, the findings indicate that adolescents whose parents attend their practices and games perceive sports activities as fun, important and useful; as a result, adolescents are less likely to dropout. The findings offer an improved understanding of how parents’ behaviors may influence adolescents’ dropout of organized sports.

Place, publisher, year, edition, pages
Elsevier, 2023
Keywords
Parents’ behaviors, Adolescents’ sports values, Sports dropout, Reciprocal associations
National Category
Psychology
Identifiers
urn:nbn:se:oru:diva-105860 (URN)10.1016/j.psychsport.2023.102448 (DOI)000999005000001 ()37665898 (PubMedID)2-s2.0-85154538998 (Scopus ID)
Available from: 2023-05-09 Created: 2023-05-09 Last updated: 2024-02-27Bibliographically approved
Latina, D., Jaf, D., Alberti, R. & Tilton-Weaver, L. (2022). Can participation in organized sports help adolescents refrain from self-harm? An analysis of underlying mechanisms. Psychology of Sport And Exercise, 59, Article ID 102133.
Open this publication in new window or tab >>Can participation in organized sports help adolescents refrain from self-harm? An analysis of underlying mechanisms
2022 (English)In: Psychology of Sport And Exercise, ISSN 1469-0292, E-ISSN 1878-5476, Vol. 59, article id 102133Article in journal (Refereed) Published
Abstract [en]

Research has rarely focused on what might make adolescents less likely to engage in deliberate self-harm. Because the sports domain is an important context promoting positive adjustment, we proposed that engaging in organized sport activities could help adolescents refrain from self-harming through affecting their psychosocial well-being. Using two annual waves of longitudinal data from 998 Swedish adolescents in grades 7 and 8 (52% boys), we tested whether depressive symptoms and self-esteem mediated the link between organized sport activities and self-harm. Results showed that self-esteem, but not depressive symptoms, mediated the association between organized sport activities and lower self-harm. Our findings reinforce the idea that organized sport activities could be a viable way of promoting mental health, laying the foundation for future interventions.

Place, publisher, year, edition, pages
Elsevier, 2022
Keywords
Organized sport activities, Self-harming behaviors, Mechanisms, Adolescence
National Category
Psychology (excluding Applied Psychology)
Identifiers
urn:nbn:se:oru:diva-96272 (URN)10.1016/j.psychsport.2022.102133 (DOI)000744462700002 ()2-s2.0-85123245587 (Scopus ID)
Funder
Forte, Swedish Research Council for Health, Working Life and Welfare, FAS 2004-1981
Available from: 2022-01-10 Created: 2022-01-10 Last updated: 2024-01-16Bibliographically approved
Jaf, D., Özdemir, M. & Skoog, T. (2021). Immigrant and Swedish adolescents' involvement in organized sports activities: an expectancy-value approach. BMC Psychology, 9(1), Article ID 12.
Open this publication in new window or tab >>Immigrant and Swedish adolescents' involvement in organized sports activities: an expectancy-value approach
2021 (English)In: BMC Psychology, E-ISSN 2050-7283, Vol. 9, no 1, article id 12Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: Drawing on Eccles' expectancy-value model, we investigated the associations between parents' sports-related socialization behaviors in the family context, youth's sports' values, and youth's involvement in organized sports activities in the Nordic countries. More specifically, we tested the mediating effect of youth's sports' values on the link between socialization of sports in the family setting and youth's sports participation. Further, we examined whether any associations were moderated by youth's immigrant background or gender.

METHODS: Immigrant and Nordic adolescents (N = 678), in 7th-8th grade, were followed over two consecutive years and responded to surveys during regular class hours.

RESULTS: Supporting Eccles' model, we found that sports-related family co-activities significantly predicted youth's prospective sports-related behaviors through youth's sports' values. The mediation process was robust across both Nordic and immigrant youth and adolescent girls and boys. Further, our results revealed that parents' role modeling of sports activities was linked to both the amount of time youth currently spend on sports and their continuation in sports through youth's sports' values, although these associations were only significant for immigrant youth.

CONCLUSIONS: Our findings offer insights into how participation in organized sports activities can be promoted among both immigrant and Nordic youth and among boys and girls. Most importantly, the findings may have valuable implications for researchers, policymakers and practitioners interested in promoting youth's involvement in organized sports activities. This especially applies to immigrant youth, given that the literature consistently reports lower sports involvement among immigrant youth than their native counterparts.

Place, publisher, year, edition, pages
BioMed Central, 2021
Keywords
Expectancy-value model, Family socialization, Immigrant youth, Organized sports, Sports’ values
National Category
Psychology (excluding Applied Psychology)
Identifiers
urn:nbn:se:oru:diva-88938 (URN)10.1186/s40359-021-00522-9 (DOI)000700931000001 ()33485395 (PubMedID)2-s2.0-85099869642 (Scopus ID)
Funder
Forte, Swedish Research Council for Health, Working Life and Welfare, 2013-01536
Note

Funding agency:

Örebro University

Available from: 2021-01-27 Created: 2021-01-27 Last updated: 2021-11-11Bibliographically approved
Jaf, D., Özdemir, M. & Bayram Özdemir, S. (2021). The Role of Parents’ Disapproval of Peers and Monitoring on Immigrant and Native Youth’s Participation in Organized Sports in Sweden: The Mediating Role of Engagement in Delinquent Activities. Journal of Early Adolescence, 41(3), 437-471
Open this publication in new window or tab >>The Role of Parents’ Disapproval of Peers and Monitoring on Immigrant and Native Youth’s Participation in Organized Sports in Sweden: The Mediating Role of Engagement in Delinquent Activities
2021 (English)In: Journal of Early Adolescence, ISSN 0272-4316, E-ISSN 1552-5449, Vol. 41, no 3, p. 437-471Article in journal (Refereed) Published
Abstract [en]

The aim of the present study was (a) to investigate the effect of perceived parents’ disapproval of peer relations and perceived parental monitoring on youth’s engagement in organized sports activities, (b) to examine whether youth’s engagement in delinquent behaviors mediates the link between parents’ behaviors and youth’s participation in and dropout from organized sports, and (c) to test whether the mediation process is moderated by youth’s immigrant background. Data were collected from immigrant and Swedish adolescents (N = 687) in seventh grade over two consecutive years. Our main findings revealed that youth who disclose their whereabouts to parents and whose parents practice control are less likely to engage in delinquent behaviors, and, in turn, more likely to engage in organized sports. The findings were similar with respect to sports dropout. Most importantly, these results hold for both immigrant and Swedish youth.

Place, publisher, year, edition, pages
Sage Publications, 2021
Keywords
parental monitoring, youth delinquency, sports participation, organized sports, dropout
National Category
Psychology (excluding Applied Psychology)
Research subject
Psychology
Identifiers
urn:nbn:se:oru:diva-82020 (URN)10.1177/0272431620919159 (DOI)000534923800001 ()2-s2.0-85085188378 (Scopus ID)
Funder
Forte, Swedish Research Council for Health, Working Life and Welfare, 2013-1536
Available from: 2020-05-25 Created: 2020-05-25 Last updated: 2021-11-11Bibliographically approved
Jaf, D. (2021). Understanding Parents' Role on Adolescents' Involvement in Organized Sports Activities. (Doctoral dissertation). Örebro: Örebro University
Open this publication in new window or tab >>Understanding Parents' Role on Adolescents' Involvement in Organized Sports Activities
2021 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

There is a consensus among scholars that participation in organized activities, such as sports, can provide youth with opportunities for positive development. Yet, the amount of time that youth spend on sports decreases over time, especially during adolescence. Immigrant youth and girls, in general, are the most disadvantaged. Parents’ socialization behaviors are highlighted as important sources of influence. However, there are some gaps in knowledge that need to be addressed to better understand how adolescents’ involvement in organized sports can be promoted and maintained over time. Hence, building on the existing literature, the aims of this dissertation are: (1) to contribute to understanding of the underlying mechanisms that may explain how parents’ behaviors are linked to adolescents’ participation in sports activities, and (2) to see whether the underlying mechanisms linking parenting behaviors to adolescents’ involvement in organized sports differ according to their background (immigrant vs. Nordic) or their gender (boys vs. girls). The dissertation indicates that parents can use various behaviors to guide and facilitate their adolescents’ overall participation in organized sports. Through general behaviors that parents practice to oversee their adolescents’ whereabouts, parents can protect their adolescents from engaging in norm-breaking behaviors, and, in turn, create opportunities for them to participate in sports activities (Study I). In addition, through sports-related behaviors within the family (Study II), or within the sporting context (Study III), parents can influence their adolescents’ sports values, and, in turn, contribute to their participation in sports activities and reduce the likelihood of dropout. Finally, and perhaps most importantly, the findings suggest that parents’ behaviors have similar implications for adolescents’ involvement in sports activities regardless of their immigration background or gender.

Place, publisher, year, edition, pages
Örebro: Örebro University, 2021. p. 108
Series
Örebro Studies in Psychology, ISSN 1651-1328 ; 44
Keywords
Parents' behaviors, family socialization, adolescents' delinquency, sport's values, organized sports activities, sports dropout
National Category
Psychology (excluding Applied Psychology)
Identifiers
urn:nbn:se:oru:diva-95336 (URN)9789175294117 (ISBN)
Public defence
2021-12-10, Örebro universitet, Långhuset, Hörsal L2, Fakultetsgatan 1, Örebro, 09:15 (English)
Opponent
Supervisors
Available from: 2021-11-08 Created: 2021-11-08 Last updated: 2022-02-02Bibliographically approved
Jaf, D. & Skoog, T. (2018). Ungas kärleksrelationer. In: Emma Sorbring, Thomas Johansson (Ed.), Barn och ungdomsvetenskap: . Stockholm: Liber
Open this publication in new window or tab >>Ungas kärleksrelationer
2018 (Swedish)In: Barn och ungdomsvetenskap / [ed] Emma Sorbring, Thomas Johansson, Stockholm: Liber, 2018Chapter in book (Refereed)
Place, publisher, year, edition, pages
Stockholm: Liber, 2018
National Category
Psychology (excluding Applied Psychology)
Research subject
Psychology
Identifiers
urn:nbn:se:oru:diva-57839 (URN)978-91-47-11307-1 (ISBN)
Available from: 2017-05-29 Created: 2017-05-29 Last updated: 2019-04-05Bibliographically approved
Jaf, D., Skoog, T. & Özdemir, M. (2017). Does parenting behavior influence youth’s participation in organized sports activities?. In: 6th ENSEC Conference: Programme & Information. Paper presented at 6th European Networks For Social And Emotional Competence Conference (ENSEC 2017), Stockholm, Sweden, June 7-9, 2017 (pp. 69-69).
Open this publication in new window or tab >>Does parenting behavior influence youth’s participation in organized sports activities?
2017 (English)In: 6th ENSEC Conference: Programme & Information, 2017, p. 69-69Conference paper, Oral presentation with published abstract (Other academic)
Abstract [en]

Participation in organized sports activities is linked with positive developmental outcomes for youth. However, the literature consistently shows that immigrant youth are less likely to participate in organized sports compared to their native counterparts. Thus, they are at risk for missing of the positive benefits of sports. The aim of this study was to investigate why immigrant youth are less likely to participate in organized sports activities compared to their native counterparts. The data come from self-reports from 679 students in 7th grade. Immigrant youth were less likely (57%) to participate in organized sports activities compared to native youth (73%). Further, parents’ engagement in sports and fathers’ employment status significantly predict Nordic youths’ sports involvement (p < .05). For immigrant youth, only fathers’ employment status did (p < .05). These finding support Eccles’ expectancy-value model, which states that parents as role-models can influence youths’ participation in organized sports activities. However, this seems to only be the case for native youth.

Additional analysis will be run in order to find out other predictors that might explain the low rates of sports involvement of immigrant youth. The findings will supplement the scarce literature on immigrant youths’ low engagement in organized sports activities.

National Category
Psychology
Identifiers
urn:nbn:se:oru:diva-72341 (URN)
Conference
6th European Networks For Social And Emotional Competence Conference (ENSEC 2017), Stockholm, Sweden, June 7-9, 2017
Note

The title of the presentation in "6th ENSEC Conference. Programme & Information" is "The association between parental physical activity and youth sports participation. Differences and similarities between immigrant and Swedish youth".

Available from: 2019-02-08 Created: 2019-02-08 Last updated: 2022-08-12Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-6492-3096

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