Table 4.

Overview of all measurement instruments for process evaluation

Outcome	Instrument	T0	T1	T2
Process evaluation
Behavioural determinants	Multidimensional Outcome Expectations for Exercise Scale78	X	X	X
	Self-efficacy for eating and exercise habits—self-composed items	X	X	X
	Sociostructural factors, self-composed items	X	X	X
	Stage of change83	X	X	X
	Type of motivation: Treatment Self-Regulation Questionnaire84	X	X	X
	Knowledge (on WCRF recommendations): Items used in previous study85	X	X	X
Acceptability of intervention	Self-composed items*		X
	The Healthcare Climate Questionnaire–Short Form (six items)66		X
Acceptability of intervention	Semistructured interviews in healthcare professionals†		X*	X‡
	Semistructured interviews in participants		X*	X‡
Dose delivered	Checklist†—Amount of (components of) sessions provided by physical therapist/dietitian	Daily, during intervention
Dose received	Checklist†—Amount of (components of) sessions participants actively engaged in	Daily, during intervention
Fidelity	Checklist†—Extent to which the intervention was executed as prescribed in the protocol (eg, reasons for and amount of adaptations to the protocol)	Daily, during intervention
Behavioural counselling skills§	Behaviour Change Counselling Inventory65	During intervention

*Parameters will only be assessed in the intervention group.

†Parameter will be examined in physical therapists and dietitians.

‡Parameter will only be assessed in the control group.

§Parameter will be examined in dietitians.

WCRF, World Cancer Research Fund.