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Table 5 Content validity of the dimension “Assessment of behaviour”

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

Evaluationc

1

Type of behaviour

10

10

1.00

0.001

1.00

****

10

8

0.80

0.044

0.79

****

9

8

0.89

0.018

0.89

****

9

7

0.78

0.070

0.76

****

2

Description of behaviour

10

10

1.00

0.001

1.00

****

10

9

0.90

0.010

0.90

****

9

8

0.89

0.018

0.89

****

8

6

0.75

0.109

0.72

***

3

First occurrence of behaviour

10

9

0.90

0.010

0.90

****

10

10

1.00

0.001

1.00

****

9

9

1.00

0.002

1.00

****

8

8

1.00

0.004

1.00

****

4

Event before the occurrence of the behaviour

10

10

1.00

0.001

1.00

****

10

10

1.00

0.001

1.00

****

9

8

0.89

0.018

0.89

****

8

7

0.88

0.031

0.87

****

5

Time at which the behaviour occurs

10

10

1.00

0.001

1.00

****

10

9

0.90

0.010

0.90

****

9

9

1.00

0.002

1.00

****

9

6

0.67

0.164

0.60

***

6

Duration of the behaviour

10

10

1.00

0.001

1.00

****

10

9

0.90

0.010

0.90

****

9

7

0.78

0.070

0.76

****

9

7

0.78

0.070

0.76

****

7

Frequency of the behaviour

10

10

1.00

0.001

1...00

****

10

10

1.00

0.001

1.00

****

8

7

0.88

0.031

0.87

****

9

9

1.00

0.002

1.00

****

8

Area in which the behaviour occurs

9

8

0.89

0.018

0.89

****

9

9

1.00

0.002

1.00

****

9

8

0.89

0.018

0.89

****

9

7

0.78

0.070

0.76

****

9

Person present when the behaviour occurs

10

8

0.80

0.044

0.79

****

10

9

0.90

0.010

0.90

****

9

7

0.78

0.070

0.76

****

9

7

0.78

0.070

0.76

****

10

Events directly before the behaviour

10

10

1.00

0.001

1.00

****

10

9

0.90

0.010

0.90

****

9

8

0.89

0.018

0.89

****

8

6

0.75

0.109

0.72

***

11

Events directly after the behaviour

10

10

1.00

0.001

1.00

****

10

9

0.90

0.010

0.90

****

9

9

1.00

0.002

1.00

****

8

8

1.00

0.004

1.00

****

12

Helpful interventions

10

8

0.80

0.044

0.79

****

10

5

0.50

0.246

0.34

*

9

7

0.78

0.070

0.76

****

8

7

0.88

0.031

0.87

****

13

Behaviour unpleasant for the resident

10

8

0.80

0.044

0.79

****

10

9

0.90

0.010

0.90

****

9

8

0.89

0.018

0.89

****

9

6

0.67

0.164

0.60

***

14

Danger for the person with dementia

10

10

1.00

0.001

1.00

****

10

9

0.90

0.010

0.90

****

9

9

1.00

0.002

1.00

****

9

7

0.78

0.070

0.76

****

15

Behaviour unpleasant for the resident or for other residents

10

8

0.80

0.044

0.79

****

10

9

0.90

0.010

0.90

****

8

6

0.75

0.109

0.72

***

9

9

1.00

0.002

1.00

****

16

Danger for other residents

10

10

1.00

0.001

1.00

****

11

9

0.82

0.027

0.81

****

9

8

0.89

0.018

0.89

****

9

7

0.78

0.070

0.76

****

17

Impact on carers

10

8

0.80

0.044

0.79

****

10

6

0.60

0.205

0.50

**

9

8

0.89

0.018

0.89

****

9

7

0.78

0.070

0.76

****

18

Danger for carers

10

8

0.80

0.044

0.79

****

8

7

0.88

0.031

0.87

****

9

9

1.00

0.002

1.00

****

10

9

0.90

0.010

0.90

****

  

S-CVI/AVE 0.92

   

S-CVI/AVE 0.87

****

  

S-CVI/AVE 0.87

   

S-CVI/AVE 0.83

   
  

S-CVI/UA 0.56

   

S-CVI/UA 0.22

   

S-CVI/UA 0.28

   

S-CVI/UA 0.17

   
  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 the 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 (**); and poor validity I-CVI < 0.4 and k* <0.40 (*)