Table 4.
Descriptive statistics, internal reliability, and discriminant validity testing of PHRBS and WAF scales
| No. of items |
Range | Cronbach’s α |
Mean (SD) |
||||
|---|---|---|---|---|---|---|---|
| Overall | HIV Risk behaviors ‘Cases’ |
No HIV Risk behaviors ‘Non-cases’ |
t/za | ||||
| PHRBS (n=179) |
8 |
0–8 |
0.87 |
2.59 (2.68) |
3.69 (2.87) |
1.51 (2.01) |
-5.30** |
|
WAF Scales | |||||||
| Sexual behavior practices (n=179) |
12 | 0–22 | 0.81 | 1.08 (3.28) | 1.66 (4.08) | 0.5 (2.09) | -2.88** |
| Readiness to change (n=35) |
5 | 0–2.6 | 0.83 | 1.34 (0.90) | 1.42 (0.94) | 1.12 (0.78) | -0.88 |
| Self-efficacy (n=179) | 7 | 0–3 | 0.88 | 1.0 (0.84) | 1.10 (0.85) | 0.91 (0.82) | -1.53 |
| Risk reduction intentions (n=35) |
8 | 0–8 | 0.87 | 5.03 (2.88) | 4.96 (2.85) | 5.2 (3.12) | 0.17 |
| Sexual relations and violence (n=179) |
4 | 0–3 | 0.58 | 1.07 (0.64) | 1.08 (0.58) | 1.07 (0.70) | -0.12 |
*
P<.05
**
P<.01
a
Mann-Whitney U test (z statistic) for pairwise comparisons is analogous to a t-test for non-normally distributed data