Development and evaluation of the content validity, practicability and feasibility of the Innovative dementia-oriented Assessment system for challenging behaviour in residents with dementia

Halek, Margareta; Holle, Daniela; Bartholomeyczik, Sabine

doi:10.1186/s12913-017-2469-8

Table 9 Content validity of the dimension “Physical discomfort”

From: Development and evaluation of the content validity, practicability and feasibility of the Innovative dementia-oriented Assessment system for challenging behaviour in residents with dementia

		Relevance of the questions						Clarity of the questions						Meaningfulness of the answers						Completeness of the answers
No	Content of the items	Number of experts	Number of ratings of 3 or 4	I-CVI^a	p_b	k* ^c	Evaluation^d	Number of experts	Number of ratings of 3 or 4	I-CVI^a	p_c ^b	k* ^c	Evaluation^d	Number of experts	Number of ratings of 3 or 4	I-CVI^a	p_c ^b	k* ^c	Evaluation^d	Number of experts	Number of ratings of 3 or 4	I-CVI^a	p_c ^b	k* ^c	Evaluation^d
1	Health problems generic	9	8	0.89	0.018	0.89	****	9	7	0.78	0.070	0.76	****	-	-	-	-	-	-	-	-	-	-	-	-
2	Pain	10	10	1.00	0.001	1.00	****	10	10	1.00	0.001	1.00	****	9	8	0.89	0.018	0.89	****	9	6	0.67	0.164	0.60	***
3	Depression	10	10	1.00	0.001	1.00	****	8	8	1.00	0.004	1.00	****	8	7	0.88	0.031	0.87	****	9	7	0.78	0.070	0.76	****
4	Hallucination/delusion	10	10	1.00	0.001	1.00	****	10	9	0.90	0.010	0.90	****	10	9	0.90	0.010	0.90	****	10	8	0.80	0.044	0.79	****
5	Sleep	10	10	1.00	0.001	1.00	****	10	8	0.80	0.044	0.79	****	10	8	0.80	0.044	0.79	****	10	7	0.70	0.117	0.66	***
6	Bowel elimination	10	10	1.00	0.001	1.00	****	10	9	0.90	0.010	0.90	****	10	8	0.80	0.044	0.79	****	10	8	0.80	0.044	0.79	****
7	Urinary elimination	10	10	1.00	0.001	1.00	****	10	8	0.80	0.044	0.79	****	10	9	0.90	0.010	0.90	****	10	8	0.80	0.044	0.79	****
8	Thirst/hunger	8	8	1.00	0.004	1.00	****	10	8	0.80	0.044	0.79	****	10	8	0.80	0.044	0.79	****	10	8	0.80	0.044	0.79	****
9	Need for movement	10	7	0.70	0.117	0.66	***	10	8	0.80	0.044	0.79	****	10	8	0.80	0.044	0.79	****	10	8	0.80	0.044	0.79	****
10	Breathing/circulatory problems	10	9	0.90	0.010	0.90	****	9	7	0.78	0.070	0.76	****	10	8	0.80	0.044	0.79	****	10	8	0.80	0.044	0.79	****
11	Discomfort	10	6	0.60	0.205	0.50	**	10	5	0.50	0.246	0.34	*	9	6	0.67	0.164	0.60	***	9	6	0.67	0.164	0.60	***
12	Other relevant health problems	9	8	0.89	0.018	0.89	****	8	6	0.75	0.109	0.72	***	8	5	0.63	0.219	0.52	**	8	6	0.75	0.109	0.72	***
13	Side effects of medication	9	9	1.00	0.002	1.00	****	9	6	0.67	0.164	0.60	***	9	9	1.00	0.002	1.00	****	9	8	0.89	0.018	0.89	****
		S-CVI/AVE 0.92						S-CVI/AVE 0.81			****			S-CVI/AVE 0.82						S-CVI/AVE 0.77
		S-CVI/UA 0.62						S-CVI/UA 0.15						S-CVI/UA 0.08						S-CVI/UA 0.00

^a I-CVI (content validity index) = number of experts providing a rating of 3 or 4/number of experts
^b p_c (probability of chance occurrence) = [N!/A!(N-A)!] × 0.5^N, N = number of experts; A = number of experts agreeing on a rating of 3 or 4
^c k* (modified kappa) = (I-CVI-p_c)(1-p_c)
^d Evaluation criteria for level of content validity: relationship between I-CVI and k*; excellent validity = I-CVI ≥ 0.78 and k* >0.74 (****); good validity I-CVI < 0.78 and ≥ 0.60 and k* ≤0.74 (***); fair validity I-CVI < 0.6 and ≥ 0.40 and k* ≤ 0.59 (**); poor validity I-CVI < 0.4 and k* <0.40 (*)

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ISSN: 1472-6963

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