A mixed-mode design for the self-administrated questionnaire of the Belgian health interview survey: A feasibility study

In addition to Face-To-Face (F2F) interviews, the Belgian Health Interview Survey (BHIS) includes paper-and-pencil (P&P) self-administered questionnaires (SAQs) for sensitive questions to reduce a potential social desirability bias and to enhance respondents’ privacy. However, the response for the P&P SAQ is declining over time and therefore a mixed-mode approach including web and P&P SAQs is considered. This design can potentially improve the...