Table 11.

Transferability themes (from Munthe‐Kaas et al., 2019).

Theme	Sub‐themes and description
Population	Population of interest
	At‐risk of engagement or already engaged in violent extremism
	Population characteristics
	Information about population‐of‐interest, such as their demographic characteristics; type of extremism; whether they have engaged with the intervention voluntarily etc.
Intervention	Intervention characteristics
	Information about intervention design, stage(s) of case management included, specific tools or approaches used etc.
	Intervention delivery
	Information on how intervention is intended to be delivered, such as the settings in which it is delivered, and whether the intervention can be tailored to other types of setting; intensity or duration of the intervention etc.
Implementation context	Providers
	Number and type of providers delivering an intervention.
	Organisations
	Information about implementing organisation(s) such as the resources available, size and structure; culture etc.
Comparison intervention (if relevant)	Information about the comparison condition against which an intervention is evaluated, including an assessment of whether the support provided through a control condition is of sufficient quality to provide a robust comparison of effectiveness.
Outcomes	Information about the specific outcomes an intervention is seeking to deliver, and how they are being measured.
Environmental context	Relevant information about, for example the temporal context (e.g., whether there have been any relevant changes in how an intervention operates/or the broader context since a study was conducted); the political, social or regulatory context; or other interventions that might influence the intervention in question.
Researcher conduct	Relevant information about how the research was conducted/how data was analysed which might influence results.