Table 2.

Overview of the measurements for each level of Kirkpatrick

		Measurement properties				Data collection period
Measurements per Level of Kirkpatrick		# Dimensions	# Items (k)	Scale	Fill out time (min)	Baseline	After the training	1st Follow-Up	2nd Follow-up
I	Reaction to the training programme
	- End-of-course critique questionnaire*	n/a	21	5-Likert	5		X
	- Evaluation questionnaire*	n/a	13	5-Likert	5			X
II	Learning from the training programme
	- SafeTeamA questionnaire (attitude towards non-technical skills)	7	43	5-Likert	10	X			X
III	Behavioural change as result of the training
	- SafeTeamB questionnaire (perception of the use of non-technical skills)	7	39	5-Likert	10	X			X
	- Process control questionnaire	5	28	Yes/No	5			X	X
	- Observation of non-technical skills	6	30	Count	n/a	X			X
	- Interview implementation progress*	n/a	n/a	n/a	n/a		X	X	X
IV	The impact of the training on the organisation
	- - COMPaZ (Patent safety culture questionnaire)	11
	- Error culture questionnaire	11	47	5-Likert	10	X			X
	- Job satisfaction and affective commitment to the ICU	7	18	5-Likert	5	X			X
	- Intake questionnaire	n/a	n/a	n/a	n/a	X			X
	- Routine administration data	n/a	n/a	n/a	n/a	Continuous

* These measurements were only collected in the intervention groups

n/a = not applicable