Table 1.

Stages and components of transtheoretical model^11,13,14

Stages of change	Description	Assessment question*	Intervention strategy
Precontemplation	Is unaware of need to change and does not have intention to change	“Do you do the (target behavior) less than half the time now, and have no plans to do it within the next 6 months?”	-Consciousness raising
			-Dramatic relief
			-Environmental reevaluation
			-Providing information about change
Contemplation	Has intention to change but experiences ambivalence towards change	“Do you do the (target behavior) less than half the time now, but are thinking about doing it sometime within the next 6 months?”	-Self-reevaluation
			-Cost and benefits
Preparation	Is preparing to take action and make plans related to change	“Do you do the (target behavior) less than half the time now, but are making definite plans to start doing it within this month?”	-Self-liberation
			-Goal-setting
Action	Engages in change or modifying behavior (less than 6 months)	“Do you do the (target behavior) at least half the time now, and have just started doing it within the last 6 months?”	-Counterconditioning
			-Helping relationships
			-Reinforcement
			-Stimulus control
			-Encouragement
Maintenance	Sustains changed behavior for more than 6 months	“Do you do the (target behavior) at least half the time now, and have been doing it for more than 6 months now?”	-Relapse prevention

^*Questions are implemented from Weight Loss Behavior-Stage of Change Scale.¹³