PROTOCOL: Primary Interventions for Preventing Cognitive and Behavioral Radicalization: An Evidence and Gap Map

This is the protocol for a Campbell evidence and gap map. The objective of this map is to systematically synthesize evidence on primary interventions for preventing cognitive and behavioral radicalization published between 2000 and 2025. It will categorize interventions by target population, intervention type, and outcomes. The EGM will indicate the quality of available evidence, identifying clusters and gaps to inform future research priorities, resource allocation, and Preventing and Countering Violent Extremism (P/CVE) programming.