In addition to the aforementioned methods, you can utilize Nfield CAPI for:
- Speeding – measure the average time needed to take the survey and check if some interviews have been completed way faster than is realistically possible. You can download the interview duration easily.
- Straightening – analyze the data to see if the same answer category for a series of questions appears too frequently.
- Pictures – look into the data and view the pictures snapped during the interviews.
- Call back – use the gathered contact information of respondents to conduct random calls to verify the data.
You can reject interviews that do not meet the quality standards in Nfield CAPI which will then eliminate them from the complete target counts and exclude their data from the overall survey data.