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Table 8 Content validity of the dimension “Independence in everyday life”

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-CVIa pc b k* c Evaluationd Number of experts Number of ratings of 3 or 4 I-CVIa pc b k* c Evaluationd Number of experts Number of ratings of 3 or 4 I-CVIa pc b k* c Evaluationd Number of experts Number of ratings of 3 or 4 I-CVIa pc b k* c Evaluationd
1 Dependence in movement 10 9 0.90 0.010 0.90 **** 10 10 1.00 0.001 1.00 **** 10 9 0.90 0.010 0.90 **** 10 9 0.90 0.010 0.90 -
2 Resources in movement 10 9 0.90 0.010 0.90 **** 10 9 0.90 0.010 0.90 **** 10 9 0.90 0.010 0.90 **** 10 9 0.90 0.010 0.90 ***
3 Dependence in personal hygiene 10 7 0.70 0.117 0.66 **** 10 10 1.00 0.001 1.00 **** 10 7 0.70 0.117 0.66 *** 10 7 0.70 0.117 0.66 ****
4 Resources in personal hygiene 10 8 0.80 0.044 0.79 **** 10 10 1.00 0.001 1.00 **** 10 7 0.70 0.117 0.66 **** 10 7 0.70 0.117 0.66 ****
5 Dependence in dressing 10 8 0.80 0.044 0.79 **** 10 9 0.90 0.010 0.90 **** 10 8 0.80 0.044 0.79 **** 10 8 0.80 0.044 0.79 ***
6 Resources in dressing 10 8 0.80 0.044 0.79 **** 10 8 0.80 0.044 0.79 **** 10 7 0.70 0.117 0.66 *** 10 7 0.70 0.117 0.66 ***
7 Dependence in nutrition 10 9 0.90 0.010 0.90 **** 10 9 0.90 0.010 0.90 **** 10 9 0.90 0.010 0.90 **** 10 9 0.90 0.010 0.90 ****
8 Resources in nutrition 9 8 0.89 0.018 0.89 **** 10 9 0.90 0.010 0.90 **** 10 8 0.80 0.044 0.79 **** 10 8 0.80 0.044 0.79 ****
9 Dependence in elimination 10 10 1.00 0.001 1.00 *** 8 7 0.88 0.031 0.87 **** 10 9 0.90 0.010 0.90 **** 10 9 0.90 0.010 0.90 ****
10 Resources in elimination 10 10 1.00 0.001 1.00 **** 10 10 1.00 0.001 1.00 **** 10 8 0.80 0.044 0.79 **** 10 8 0.80 0.044 0.79 ****
11 Dependence in leisure time activities 10 7 0.70 0.117 0.66 *** 10 6 0.60 0.205 0.50 ** 10 6 0.60 0.205 0.50 ** 10 6 0.60 0.205 0.50 **
12 Resources in leisure time 10 7 0.70 0.117 0.66 *** 10 8 0.80 0.044 0.79 *** 10 6 0.60 0.205 0.50 ** 10 6 0.60 0.205 0.50 **
13 Dependence in social contacts 10 8 0.80 0.044 0.79 **** 10 8 0.80 0.044 0.79 *** 10 7 0.70 0.117 0.66 *** 10 7 0.70 0.117 0.66 ***
14 Resources in social contacts 10 8 0.80 0.044 0.79 **** 10 8 0.80 0.044 0.79 **** 10 6 0.60 0.205 0.50 ** 10 6 0.60 0.205 0.50 **
15 Other dependencies 10 6 0.60 0.205 0.50 ** 10 7 0.70 0.117 0.66 *** 10 5 0.50 0.246 0.34 * 10 5 0.50 0.246 0.34 *
16 Other resources 9 5 0.56 0.246 0.41 ** 9 7 0.78 0.070 0.76 **** 9 5 0.56 0.246 0.41 ** 9 5 0.56 0.246 0.41 **
17 Burden through dependencies 10 9 0.90 0.010 0.90 **** 9 7 0.78 0.070 0.76 **** 9 6 0.67 0.164 0.60 *** 9 6 0.67 0.164 0.60 ***
   S-CVI/AVE 0.81     S-CVI/AVE 0.85 ****    S-CVI/AVE 0.72     S-CVI/AVE 0.72    
   S-CVI/UA 0.12     S-CVI/UA 0.24     S-CVI/UA 0.00     S-CVI/UA 0.00    
  1. a I-CVI (content validity index) = number of experts providing a rating of 3 or 4/number of experts
  2. b pc (probability of chance occurrence) = [N!/A!(N-A)!] × 0.5N, N = number of experts; A = number of experts agreeing on a rating of 3 or 4
  3. c k* (modified kappa) = (I-CVI-pc)(1-pc)
  4. 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 (*)