Table A1.
Overview of the scale measures for pre-test variables.
| Measures and Example Items | Number of Items | Min Score | Max Score | Mean Score | Standard Deviation | Cronbach’s Alpha (α)/Pearson’s r |
|---|---|---|---|---|---|---|
|
Attitude towards using a condom consistently for every sexual encounter in the next 3 months -Using a condom consistently for every sexual encounter in the next 3 months is something that is good |
5 | 1 | 5 | 4.5 | 0.75 | 0.81 |
|
Subjective Norm towards using a condom consistently for every sexual encounter in the next 3 months -Most people who are important to me think that using a condom for every sexual encounter consistently in the next 3 months is a good thing |
5 | 1 | 5 | 3.8 | 1.16 | 0.88 |
|
Perceived Behavioural Control towards using a condom consistently for every sexual encounter in the next 3 months -For me to use a condom consistently for every sexual encounter in the next 3 months is possible |
3 | 1 | 5 | 4.4 | 0.82 | 0.70 |
|
Intention towards using a condom consistently for every sexual encounter in the next 3 months -I intend to use a condom consistently for every sexual encounter in the next 3 months |
6 | 1 | 5 | 4.1 | 1.10 | 0.92 |
|
Attitude towards testing for HIV at a VCT clinic in the next 3 months -Getting tested for HIV at a VCT clinic in the next 3 months is something that is good |
6 | 1 | 5 | 4.4 | 0.82 | 0.84 |
|
Subjective Norm towards testing for HIV at a VCT clinic in the next 3 months -Most people who are important to me think that getting tested for HIV at a VCT clinic in the next 3 months is a good thing |
5 | 1 | 5 | 4.0 | 1.05 | 0.89 |
|
Perceived Behavioural Control testing for HIV at a VCT clinic in the next 3 months -For me to test for HIV at a VCT clinic in the next 3 months is possible |
4 | 1 | 5 | 4.3 | 0.83 | 0.76 |
|
Intention towards testing for HIV at a VCT clinic in the next 3 months -I intend to test for HIV at a VCT clinic in the next 3 months |
6 | 1 | 5 | 4.0 | 1.04 | 0.93 |
|
Attitude towards reducing overall alcohol and drug intake -Reducing overall drug and alcohol intake to only one day a week in the next 3 months is something that is good |
6 | 1 | 5 | 4.3 | 0.97 | 0.86 |
|
Subjective Norm towards reducing overall alcohol and drug intake -Most people who are important to me think that reducing overall drug and alcohol intake to only one day a week in the next 3 months is a good thing |
5 | 1 | 5 | 3.8 | 0.99 | 0.84 |
|
Perceived Behavioural Control towards reducing overall alcohol and drug intake -For me to reduce overall drug and alcohol intake to only one day a week in the next 3 months is possible |
4 | 1 | 5 | 4.2 | 0.82 | 0.72 |
|
Intention towards reducing overall alcohol and drug intake -I intend to reduce overall drug and alcohol intake to only one day a week in the next 3 months |
7 | 1 | 5 | 4.1 | 1.04 | 0.93 |
|
Attitudes towards avoiding sex when you are intoxicated -Avoiding engaging in sex when under the influence of drugs or alcohol in the next 3 months is something that is good |
5 | 1 | 5 | 4.0 | 1.20 | 0.91 |
|
Subjective Norm towards avoiding sex when you are intoxicated -Most people who are important to me think that avoiding engaging in sex when under the influence of drugs or alcohol in the next 3 months is a good thing |
5 | 1 | 5 | 3.7 | 1.05 | 0.84 |
|
Perceived Behavioural Control towards avoiding sex when you are intoxicated -For me to avoid engaging in sex when under the influence of drugs or alcohol in the next 3 months is possible |
4 | 1 | 5 | 3.9 | .88 | 0.64? |
|
Intention towards avoiding sex when you are intoxicated -I intend to avoid engaging in sex when under the influence of drugs or alcohol in the next 3 months |
6 | 1 | 5 | 4.1 | 1.04 | .92 |
|
Attitude towards avoiding sex with people who are intoxicated -Avoiding engaging in sex with people who are under the influence of drugs or alcohol in the next 3 months is something that is good |
5 | 1 | 5 | 3.8 | 1.42 | 0.94 |
|
Subjective Norm towards avoiding sex with people who are intoxicated -Most people who are important to me think that avoiding engaging in sex with people who are under the influence of drugs or alcohol in the next 3 months is a good thing |
5 | 1 | 5 | 3.7 | 1.12 | 0.87 |
|
Perceived Behavioural Control towards avoiding sex with people who are intoxicated -For me to avoid engaging in sex with people who are under the influence of drugs or alcohol in the next 3 months is possible |
4 | 1 | 5 | 4.0 | 0.95 | 0.80 |
|
Intention towards avoiding sex with people who are intoxicated -I intend to avoid engaging in sex with people who are under the influence of drugs or alcohol in the next 3 months |
6 | 1 | 5 | 4.0 | 1.08 | 00.92 |