| Popis: |
Validity and reliability of self-reported sexual behaviour in epidemiological surveys are suboptimal, particularly among young people. 1495 rural Zimbabwean youth were randomly allocated to one of the following: self-administered questionnaire (SAQ=373), SAQ accompanied by an audio soundtrack (Audio-SAQ=376); face-to-face interview using an informal confidential voting box (ICVI=365); and audio computer-assisted survey instrument (ACASI=381). Biomarkers for sexual activity included HIV, HSV-2 and pregnancy test in females. Key questions were selected a priori to compare item non-response and rates of reporting sensitive behaviours between questionnaire delivery modes. Additional qualitative and quantitative data were collected on method acceptability. Item non-response was significantly higher with SAQ and Audio-SAQ than with ICVI and ACASI (p |
