Person-centredness in the care of older adults: a systematic review of questionnaire-based scales and their measurement properties

Table 7 Quality synthesis

Measure	Internal consistency	Reliability	Measurement error	Content validity	Structural validity	Hypothesis testing	Cross-cultural
Specific measures
ICI	?	?		?	++	--	?
P-CAT	+++	+		++	+/−	?
PCFC	+++			?	?
PCHC	?			+++	++
PDC	++			++	+
‘Untitled’	?	?		?
Generic measures
PCQ (Staff version)	+++	-		?	++	?	?
PCQ (Patient version)	?	+		?		?	?
MPOCA	?	+		?		?
CCCQ	+++	+++	?	?	+++	-	?
ICS-N	+				?
CCRQ	?	++		+++		?

Empty cells indicate the property was not been assessed in any reference for that measure. ‘+++’(‘---‘) indicates that ‘strong’ evidence supports a positive (negative) measurement property for that instrument; ‘++’(‘—‘) indicates ‘moderate’ evidence; ‘+’(‘-‘) indicates ‘limited’ evidence; ‘+/−‘indicates conflicting evidence; and ‘?’ indicates that only studies of poor quality were available or could not be determined

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