To ensure the quality of data gathered from the field, ADS always conducts these three following activities:
  • Witness
  • 10% of total number of respondents being interviewed will be witnessed by ADS’s team leader or supervisor.
  • Recall
  • 20% of total number of respondents being interviewed will be rechecked by ADS quality control team ---- however if it is needed, ADS can appoint independent quality control company.
  • Check
  • 100% of total number of respondents being interviewed will be checked by checker to ensure the consistency and clarity of data.
ADS Interview