Table 2.

A summary of the behavior change techniques selected, their context within the Capability, Opportunity, Motivation and Behavior framework, and their application within the platform (continued).

Capability, Opportunity, Motivation and Behavior Framework			Description of behavioral determinant	Behavior change techniquea	Application within the program
					Standard app	Gamified app	Social support (Facebook) group
Opportunity
	Physical
		Cues to action; Intervention function: Environmental restructuring	Providing reminders to consume vegetables to increase the likelihood of practicing the behavior; Creating healthy triggers within the environment to support increased vegetable consumption	Prompts/cues	—b	—	Providing tips on the Facebook page on how to maximize exposure to vegetables as a means of increasing consumption such as “Take your forgotten veg out of that bottom fridge draw and place on the top shelf so you’re reminded to cook with them”
		Cues to action; Intervention function: Enablement	Providing weekly challenges to increase vegetable intake	Graded tasks	—	Challenge based on personal opportunities, for example, add veg to breakfast	—
	Social
		Social support; Intervention function: Enablement	Instigating positive peer rivalry to encourage vegetable intake	Social support (practical)	—	—	Competitions such as best cooked vegetable dish, quirkiest vegetable of the week between peers on the Facebook page
Motivation
	Reflective
		Cognitive strategies; Intervention function: Persuasion	Restructuring beliefs and perceived barriers by debunking myths about vegetables, for example, bad taste	Framing/reframing	—	—	Myth busting articles encouraging participants to reevaluate beliefs, for example, Top 5 ways to enjoy the taste of vegetables
	Automatic
		Goal setting and self-monitoring; Intervention function: Enablement	Setting SMARTc goals for increasing vegetable intake	Goal setting (behavior); Review behavior goal(s)	App prompts user to set goal for vegetables serves/day, personalized based on current intake so it is achievable. Can assess progress against goal and recommended intake in review page	App prompts user to set goal for vegetables serves/day, personalized based on current intake so it is achievable. Can assess progress against goal and recommended intake in review page	—

^aBased on Susan Michie’s Behavior Change Taxonomy behavior change techniques [40].

^cSMART: Specific, Measurable, Achievable, Relevant, Time-bound.

^bNot applicable.