Response conversions between Rounds 1 and 2 (asked 1 week later)
| A. Positive conversions: participants who reported they had never had sex in Round 1 but changed their response and reported they had had sex in Round 2 | |||||
| Round 1 (no) | Round 2 (yes) | Total (%) | |||
| SAQ (%) | ICVI (%) | Audio-SAQ (%) | ACASI (%) | ||
| SAQ (92) | 0/24 (0) | 0/19 (0) | 2/25 (8.0) | 5/24 (20.8) | 7/92 (7.6) |
| ICVI (79) | 0/19 (0) | 1/26 (3.8) | 2/16 (12.5) | 2/18 (11.1) | 5/79 (6.3) |
| Audio-SAQ (77) | 0/20 (0) | 0/21 (0) | 1/18 (5.6) | 2/18 (11.1) | 3/77 (3.9) |
| ACASI (83) | 1/22 (4.6) | 0/17 (0) | 0/17 (0) | 5/27 (18.5) | 6/83 (7.2) |
| Total | 1/85 (1.2) | 1/83 (1.2) | 5/76 (6.6) | 14/87 (16.1) | 21/331 (6.3) |
| B. Negative conversions: participants who reported they had had sex in Round 1 but changed their response and reported they had never had sex in Round 2 | |||||
| Round 1 (yes) | Round 2 (no) | Total (%) | |||
| SAQ (%) | ICVI (%) | Audio-SAQ (%) | ACASI (%) | ||
| SAQ (8) | 0/1 (0) | 0/2 (0) | 0/1 (0) | 0/4 (0) | 0/8 (0.0) |
| ICVI (14) | 1/4 (20.0) | 0/3 (0) | 0/5 (0) | 0/1 (0) | 1/14 (7.1) |
| Audio-SAQ (15) | 2/3 (66.7) | 1/3 (33.3) | 1/3 (33.3) | 0/6 (0) | 4/15 (26.7) |
| ACASI (15) | 4/6 (66.7) | 0/4 (0) | 3/3 (100) | 0/2 (0) | 7/15 (46.7) |
| Total | 7/15 (46.7) | 1/12 (8.33) | 4/12 (33.3) | 0/13 (0) | 12/52 (23.1) |
SAQ, self-administered questionnaire using paper and pen; ICVI, informal confidential voting interview where a trained interviewer administers the majority of the questionnaire, but sensitive questions are recorded by a respondent onto a sheet placed in a locked ballot box; Audio-SAQ, self-administered questionnaire accompanied by an audio soundtrack; ACASI, audio-computer-assisted survey instrument where respondent enters their response using a computer after hearing questions and response options through headphones.