Table 4.
Construct Validity Analysis of the HIV Disability Questionnaire.a,b
| Construct Validity Analysis | Spearman Correlation Coefficient (95% CI) |
|---|---|
| Convergent construct validity hypotheses | |
| (1) Total WHODAS scores will strongly correlate (≥0.70) with HDQ total scores | 0.84 (0.78-0.89)c |
| (2) Cognition WHODAS summary scores will strongly correlate (≥0.70) with the cognitive domain scores of the HDQ | 0.83 (0.77-0.88)c |
| (3) Cognition WHODAS summary scores will moderately correlate (≥0.50) with the mental–emotional domain scores of the HDQ | 0.63 (0.51-0.73)c |
| (4) Mobility WHODAS summary scores will strongly correlate (≥0.70) with the difficulties with day-to-day domain scores of the HDQ | 0.79 (0.71-0.85)c |
| (5) Self-care WHODAS summary scores will strongly correlate (≥0.70) with the difficulties with day-to-day domain scores of the HDQ | 0.58 (0.45-0.69) |
| (6) Getting along WHODAS summary scores will moderately correlate (≥0.50) with the social inclusion domain scores of the HDQ | 0.66 (0.55-0.75)c |
| (7) Life-activities (household) WHODAS summary scores will strongly correlate (≥0.70) with the difficulties with day-to-day domain scores of the HDQ | 0.76 (0.67-0.82)c |
| (8) Life-activities (work) WHODAS summary scores will moderately correlate (≥0.50) with the social inclusion domain scores on the HDQ | 0.58 (0.42-0.71)c |
| (9) Participation WHODAS summary scores will strongly correlate (≥0.70) with the social inclusion domain scores on the HDQ | 0.77 (0.69-0.83)c |
| (10) Total WHODAS scores will strongly correlate (≥0.7) with the physical symptoms and impairments domain scores of the HDQ | 0.71 (0.61-0.79)c |
| (11) Total WHODAS scores will strongly correlate (≥0.7) with the cognitive symptoms and impairments domain scores of the HDQ | 0.68 (0.57-0.76) |
| (12) Total WHODAS scores will strongly correlate (≥0.7) with the mental–emotional symptoms and impairments domain scores of the HDQ | 0.72 (0.62-0.79)c |
| (13) Total WHODAS scores will strongly correlate (≥0.7) with the difficulties with day-to-day activities domain scores of the HDQ. | 0.78 (0.71-0.84)c |
| (14) Total WHODAS scores will strongly correlate (≥0.7) with the challenges to social inclusion domain scores of the HDQ | 0.75 (0.66-0.82)c |
| (15) Total WHODAS scores will moderately correlate (≥0.5) with the uncertainty domains of the HDQ | 0.59 (0.47-0.70)c |
| Total number of hypotheses confirmed | 13/15 (87%) |
Abbreviations: CI, confidence interval; HDQ, HIV Disability Questionnaire; WHODAS, World Health Organization Disability Assessment Schedule II.
a n = 124.
b All correlation coefficients significant (P < .0001).
c Construct validity hypothesis confirmed: 13 of 15.