Validation of the Erlangen Test of Activities of Daily Living in Persons with Mild Dementia or Mild Cognitive Impairment (ETAM)

Table 5 Distribution values for ETAM scores and the items used on the final version

ICF domain and Items
	Communication	Mobility	Self-care	Domestic life		Major life areas -economic life
	Phone call	Traffic situations	Pill organiser	Making tea	Alarm clock	Finances	ETAM total score
Mean (Min; Max)	2.0 (0; 6)	3.0 (0; 6)	2.9 (0; 6)	1.9 (0; 3)	1.7 (0; 3)	4.0 (0; 6)	15.4 (1; 30)
Standard deviation	1.5	1.6	2.5	0.8	1.0	1.6	6.2
Skewness	1.05	−.18	.04	−.40	.11	−.68	−.08
Kurtosis	.56	−.58	−1.75	−.29	−1.16	−.14	−1.12
Discriminatory power of item	.42	.40	.64	.43	.43	.47
Cronbach’s alpha if item deleted	.68	.68	.61	.69	.68	.65

ISSN: 1471-2318