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Quality control The following quality control measures are in place:

  • Constant supervision, feedback, retraining and quality checks by experienced supervisors in the field.
  • 10%-20% back-checks on completed questionnaires in the field to ensure that interviews are conducted according to the correct procedures .
  • Checking all questionnaires once again at our head office to identify any further problems for immediate rectification in the field.
  • Back-checking ± 10% of all questionnaires from head office.