A study can never be better than the data behind it. That is why our quality control starts before fieldwork begins.
The questionnaire is piloted, and interviewers go through briefing and testing. During collection, tablets record GPS coordinates, interview duration and sample audio recordings.
Supervisors call back a share of respondents, and analysts check the dataset for anomalies: interviews that are too fast, straight-lining, duplicates.
Doubtful questionnaires are removed and replaced, and the client receives a quality-control report together with the data.
