Evaluating audio computer assisted self-interviews in urban south African communities: evidence for good suitability and reduced social desirability bias of a cross-sectional survey on sexual behaviour

Table 1 Participant experience with ACASI mode of inquiry in cross-sectional sexual behaviour survey

	n	%
N	798
Ease
Very easy	536	67.2
Somewhat easy	149	18.7
Somewhat difficult	84	10.5
Very difficult	28	3.5
I don’t know	1	0.1
Confidentiality
Very private	708	88.7
Somewhat private	61	7.6
No privacy	26	3.3
I don’t know	3	0.4
Truthfulness
Answered all truthfully	683	85.6
Answered most truthfully	84	10.5
Answered some truthfully, some dishonestly	13	1.6
Answered most dishonestly	9	1.1
Answered all dishonestly	7	0.9
I don’t know	2	0.3
Preferred mode of inquiry
Touch screen computer with ACASI	658	82.5
Researcher-administered verbal questionnaire	66	8.3
Self-administered written questionnaire	38	4.8
Telephonic survey	36	4.5
I don’t know	0	0.0