Table 4.

Correlations between AMI caregiver total score and subscale score with related measures

	AMI‐CG total	Behavioural activation	Emotional sensitivity	Social motivation
Apathy measures
Apathy Motivation Index Total (AMI)	0.44**	0.31**	0.26**	0.49**
Behavioural Activation	0.31**	0.33**	0.13	0.25**
Emotional Sensitivity	0.30**	0.14	0.32**	0.27**
Social Motivation	0.39**	0.24**	0.19*	0.51**
Apathy Motivation Index Caregiver Version Total (AMI‐CG)	–	0.84**	0.63**	0.81**
Behavioural Activation	0.84**	–	0.29**	0.55**
Emotional Sensitivity	0.63**	0.29**	–	0.34**
Social Motivation	0.81**	0.55**	0.34**	–
Lille Apathy Rating Scale Caregiver Version (LARS‐i)	0.72**	0.68**	0.44**	0.51**
Neuropsychiatric Inventory Apathy Score (NPI‐Q)	0.50**	0.49**	0.29**	0.33**
Related neuropsychiatric measures
Beck's Depression Inventory (BDI)	0.18*	0.26**	−0.04	0.19*
Geriatric Depression Scale (GDS)	0.1	0.17	−0.08	0.18*
Snaith–Hamilton Anhedonia Scale (SHAPS)	0.27**	0.16	0.15	0.33**
Related caregiver measures
Bayer Activities of Daily Living (B‐ADL)	0.52**	0.67**	0.13	0.32**
Zarit Burden Interview (ZBI)	0.56**	0.60**	0.31**	0.35**

*p < .05, **p < .01.