PROTOCOL: What are the effects of different elements of media on radicalization outcomes? A systematic review

Michael Wolfowicz*, Badi Hasisi, David Weisburd

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Objectives: In this systematic review and meta analysis we will collate and synthesize the evidence on media-effects for radicalization, focusing on both cognitive and behavioral outcomes. The goal is to identify the relative magnitudes of the effects for different mediums, types of content, and elements of human-media relationships. Methodology: Random-effects meta analysis will be used and the results will be rank-ordered according to the size of the pooled estimates for the different factors. Meta-regressions, moderator analysis, and sub-group analyses will be used to investigate sources of heterogeneity. Implications: The results of this review will provide a better understanding of the relative magnitude of the effects of media-related factors. This information should help the development of more evidence-based policies.

Original languageAmerican English
Article numbere1148
JournalCampbell Systematic Reviews
Issue number1
StatePublished - Mar 2021

Bibliographical note

Funding Information:
This study was supported by the Horizon 2020 Grant 699824, DHS Science and Technology Directorate and the Five Research and Development (5RD) Countering Violent Extremism Network, provided to the Campbell Collaboration.

Publisher Copyright:
© 2021 The Authors. Campbell Systematic Reviews published by John Wiley & Sons Ltd on behalf of The Campbell Collaboration


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