Bullying

Overview

Influence: Bullying
Domain: Classroom
Sub-Domain: Classroom management
Potential to Accelerate Student Achievement: Likely to have a negative impact
Influence Definition: Bullying is an ongoing and deliberate misuse of power in relationships through repeated verbal, physical, and/or social behavior that intends to cause physical, social, and/or psychological harm. It can occur in person, online, by individuals, or by groups at almost any age.

Meta-Analyses
Journal Title	Author	First Author's Country	Article Name	Year Published	Variable	Number of Studies	Number of Students	Number of Effects	Effect Size
Social Development	Nakamoto & Schwartz	USA	Is Peer Victimization Associated with Academic Achievement? A Meta-analytic Review	2010	Peer victimization on achievement	33	29,552	33	-0.24
Psychological Bulletin	Kowalski, Giumetti, Schroader, & Lattanner	USA	Bullying in the digital age: A critical review and meta-analysis of cyberbullying research among youth	2014	Cyberbullying	6	0	6	-0.09
Review of Educational Research	Gardella, Fisher, & Teurbe-Tolon	USA	A Systematic Review of Meta-Analysis of Cyber-Victimization and Educational Outcomes for Adolescents	2017	Cyber-bullying	25	0	25	-0.28
World Journal of Psychiatry	Moore, Norman, Suetani, Thomas, Sly, & Scott	USA	Consequences of bullying victimization in childhood and adolescence: A systematic review and meta-analysis	2017	Bullying on achievement	6	0	6	-0.73
International journal of environmental research and public health	Samara, Nascimento, El-Asam, Hammuda, & Khattab	UK	How can bullying victimisation lead to lower academic achievement? A systematic review and meta-analysis of the mediating role of cognitive-motivational factors.	2021	Bullying victimization	11	257,247	14	-0.26
TOTAL/AVERAGE						81	286,799	84	-0.32