Table 3.

CSO intervention content checklist

	Intervention content	CRAFT	online CBT a	5-stepb	Std. treat.c	BCT d	CCT	ICT-PG e	Efa	GHO's e-therapy f
Information and understanding	Psychoeducation about problem gambling	x	x	x	x	x		x	x	x
	Additional psychoeducation	x	x	x	x		x		x
	Information on protecting finances	x	x			x		x	x	x
	Information on available services	x	x	x					x	x
	Understanding self			x	x		x	x
	Understanding gambler	x	x			x	x	x
Social support	Professional provides advice and information	x	x	x	x	x	x	x		x
	Professional provides therapeutic response	x	x	x	x	x	x	x
	Building and maintaining social support network	x		x	x				x
	Peer support				x	x				x
	Strengthen mutual support within couple relationship						x	x
Coping skills	Reinforce non-gambling behavior	x	x			x		x
	Avoid reinforcing gambling	x	x			x		x
	Encourage gambler into treatment	x	x
	Explore coping strategies			x	x				x	x
	Problem solving skills	x	x					x
	Dealing with adversities	x							x
	Self-care	x	x		x		x		x
	Motivational enhancement	x	x			x		x
	Plan for potential crisis								x
Communication	Communication skill training	x	x	x	x	x	x	x	x
	How to talk about gambling and avoid resistance	x	x				x	x
	Broaden and deepen comm. patterns within couple						x	x
Other	Realistic expectations	x	x	x				x	x
	Goal setting	x	x			x	x	x
	Self-monitoring	x	x			x		x
	Review of content		x			x			x
	Future planning		x	x					x	x
	Problem gambling treatment				x	x	x	x		x

Additional sources (beyond included studies) used for intervention content details are indicated with superior letters: ^a Magnusson et al. (2015); ^b Copello et al. (2010); ^c Standard treatment, refers to intervention utilized in Kourgiantakis (2017); ^d Nilsson et al. (2016); ^e Tremblay et al. (2015); ^f www.gamblinghelponline.org.au; For elaboration to the intervention content checklist see online Supplementary material 2. (osf.io/hr7s6/).