Table 1.

Reliability of COM (Capability, Social Opportunity, and Motivation—cat welfare-framed and Motivation—community-framed) themes and individual items that were rated by respondents.

COM Theme	Individual Items	Cronbach α
		0.82
Capability to contain cat (3 items)	1. Preventing cat roaming is too difficult (reversed score)
	2. Confident can prevent cat roaming freely
	3. Confident can provide everything to ensure contained cat is happy
		0.83
	4. A practice that my family and friends would agree with
Social Opportunity for cat containment (5 items)	5. A practice that veterinarians would agree with
	6. A practice that my neighbours would agree with
	7. A practice that other cat owners would agree with
	8. Council should have law requiring cats to be kept on owners’ premises
		0.78
	9. Should be prevented from roaming to keep them safe
Motivation—cat welfare-framed (3 items)	10. Should be prevented from roaming as good for their health and wellbeing
	11. Believe cats do not like being contained (reverse score)
		0.85
Motivation—community-framed (4 items)	12. Should be prevented from roaming to protect wildlife
	13. Should be prevented from roaming, as can be nuisance to neighbours
	14. Would prevent from roaming if required by law
	15. Believe cats should be allowed free to roam (reverse score)