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Table 3 ADL or Activity Limitation Scales based on PCAF Activity Limitation Measures

From: Summarizing activity limitations in children with chronic illnesses living in the community: a measurement study of scales using supplemented interRAI items

Scale Properties

Development Sample, 2009

(n = 2760)

Development Sample, 2009

(n = 2760)

Validation Sample, 2010

(n = 1765)

Validation Sample, 2010

(n = 1765)

 

HC-PEDS

ADL Limitations Scale

HC-PEDS

Hands-on Needs Scale

HC-PEDS

ADL Limitations Scale

HC-PEDS

Hands-on Needs Scale

Distribution

    

Mean

24.9

5.3

23.0

4.9

St. Deviation

15.3

3.3

14.3

3.1

Skewness

0.4

0.1

0.6

0.2

Kurtosis

-1.1

-1.1

-0.8

-0.9

Median

21

5

19

4

Inter-quartile range

13-40

3-9

12-33

3-8

Range

0-50

0-10

0-50

0-10

Internal Consistency (unstandardized Cronbach's alpha)

    

Full sample

0.93

0.90

0.93

0.89

Ages 4-8

0.92

0.88

0.91

0.86

Ages 9-12

0.93

0.90

0.93

0.89

Ages 13-16

0.94

0.91

0.93

0.90

Ages 17-20

0.93

0.90

0.94

0.88

Male

0.93

0.90

0.93

0.89

Female

0.93

0.90

0.92

0.89

Medical conditions only

0.93

0.89

0.92

0.88

Psychiatric, development or behavioral conditions only

0.79

0.76

0.77

0.73

Both medical and psychiatric, development or behavioral conditions.

0.93

0.90

0.93

0.89

Discriminant Validity (Pearson's r)

    

Age

-0.016

(p = 0.39)

-0.012

(p = 0.50)

-0.0174

(p = 0.46)

-0.025

(p = 0.28)

Concurrent Validity (Pearson's r)

    

Additive IADL scale

(2009 sample α = 0.88; 2010 sample α = 0.87)

0.329

0.304

0.320

0.292

2-Person Assistance w/an ADL

0.464

0.444

0.538

0.504

Cognitive Scale

(2009 sample α = 0.82; 2010 sample α = 0.82)

0.355

0.309

0.368

0.315

Predictive Validity (Pearson's r)

    

PCS hours authorized

0.455

0.435

0.436

0.424

Construct Validity (R 2 )

    

OLS Model

0.65

0.59

0.71

0.64