Quality Assurance Procedures

A number of procedures and tests were employed to ensure a high quality of the survey work. The main quality assurance procedures were:

  • Intensive training of interviewers, including mock interviews during the training and systematic checking by a supervisor of the first questionnaires filled by one interviewer;

  • Implementation of data collection control procedures (check of 30% - 40% of the filled questionnaire delivered by the interviewers; back checking of at least 20% of the completed interviews):

  • Data entry management and control procedures as per Gallup Pakistan's Quality Manual, such as double punching and data clearing routines;