Recruitment questionnaires are used in qualitative research and for recruitment of respondents for some types of quantitative research (eg clinics held in central locations). The purpose of this type of questionnaire is to identify eligible respondents in order to invite them to attend the main research session. Consequently, the data collected should be limited to that required to determine whether or not respondents meet the criteria that would define them as a member of the target group for the research.
The recruitment questionnaire does not, therefore, have to address all of the objectives of the research study but should be limited to the minimum number of questions required to establish eligibility.
Source: Brace Ian (2018), Questionnaire Design: How to Plan, Structure and Write Survey Material for Effective Market Research, Kogan Page; 4th edition.