Several means and processes for assurance of interviews quality by two different teams; field team and quality team.
Interviewers Accompaniment:
A supervisor accompany each interviewer for at least 10% of the sample to ensure that interviewers are asking all of the questions appropriately and is well versed in handling physicians comments.
Recordings of Interviews:
5% of the completed interviews are recorded (upon having the respondent consent) and the field manager listens to each of them
Logic Check :
100% of the questionnaires are vetted centrally upon received for logic sequencing and/or missing answers.
Back Check:
Next step to re-contact at least 40% of the respondents and cross match the data received and make sure the right answers were captured.
Feedbacks are given to each interviewer and Re-briefings are arranged to ensure that 100% of the questionnaires are error free