Table 3.

Application of interdependence theory to partner intervention.

Interdependence construct	Operationalization
Transformation of motivation	•Psychoeducation and discussion about (1) health effects of obesity and (2) interdependence of participant and partner diet and physical activity behaviors •Participants and partners sharing their thoughts and feelings about how obesity affects their relationship •Communication skills training
Communal coping process •Outcome efficacy •Couple efficacy Use of communal coping (including provision of social support for diet and physical activity)	•Joint action planning •Joint relapse prevention planning •Identifying and practicing methods of providing effective informational, emotional, and instrumental support (e.g., complimenting on changing habits, exercising together)