Satisfaction and experience with colorectal cancer screening: a systematic review of validated patient reported outcome measures

Table 5 Quality of studies on measurement properties

Measurement property			CSSQP³²	Patient Satisfaction Survey³³	Post procedure questionnaire³⁵	SmGHAA-9 m³⁴	Screening Flexible Sigmoidoscopy Assessment Questionnaire³⁶
Content validity	Asking patients	Relevance	D	D	D	D	–
		Comprehensiveness	D	D	D	D	–
		Comprehensibility	D	D	D	D	D
	Asking experts	Relevance	–	D	D	–	D
	Asking experts	Comprehensiveness	–	D	D	–	D
Internal structure	Structural validity		A	–	A	–	A
	Internal consistency		V	D	V	D	V
	Cross-cultural validity		–	–	–	–	–
Other measurement properties	Reliability		–	–	–	I	A
	Measurement error		–	–	–	–	A
	Criterion validity		–	–	–	–	–
	Construct validity	Convergent validity	–	D	–	–	V
	Construct validity	Known groups validity	V	–	–	–	–
	Responsiveness	Comparison with gold standard	–	–	–	–	–
		Comparison with other instruments	–	–	–	–	V
		Comparison between subgroups	–	–	–	–	–
		Comparison before and after intervention	–	–	–	–	–

V very good; A adequate; D doubtful; I: inadequate
Cells not colored correspond to measurement properties not assessed in included studies

ISSN: 1471-2288