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oai:figshare.com:article/32633919 2026-10-01T16:59:28Z portal_1172 item_type_8 month_year_10_2026

Bullying - A systematic review of prevalence and an exploration of its association with attenuated symptoms of psychosis Callum Urquhart (24165987) PUREID: 424688041 The thesis comprises of two studies.<br><br>The first was systematic review and meta-analysis of bullying prevalence amongst post-primary children in the United Kingdom.<br><br>45 eligible studies were found and prevalence meta-analysis provided pooled prevalence estimates of bullying across three time periods (1993-2002, 2003-2012, 2013-2022). For 2013-2022 the pooled prevalence estimates were as follows: victims of traditional bullying 23%, perpetrators of traditional bullying 10%, victims of cyberbullying 15%, preparators of cyberbullying 8%. Insufficient studies prevented a meta-analysis of bully/victims prevalence but relevant studies ranged from 1% to 20%.<br><br>The second was an empirical study which explored the association between sex, age, adverse childhood experiences and bullying with attenuated symptoms of psychosis. A hierarchical multiple regression explored four models combing age, sex, ACEs, traditional bullying and cyberbullying and their relationship to the PQ16 in 1528 adults (18-35) . <br><br>The final regression model, which combined all forms of bullying, age, sex, and ACEs explained 15% of variance in relation to the number of items endorsed on the PQ16. Traditional forms of bullying made a unique contribution of 4.6% to the regression model and this was increased by 0.6% when cyberbullying was also included. Although sex showed a significant association with the number of items endorsed on the PQ16 in the first regression model, this relationship disappeared when ACEs were introduced.<br> 2026-10-01T16:59:28Z Text Thesis 10.17034/32633919.v1 https://figshare.com/articles/thesis/Bullying_-_A_systematic_review_of_prevalence_and_an_exploration_of_its_association_with_attenuated_symptoms_of_psychosis/32633919 All Rights Reserved