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.
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