EVALUATION

• STRENGTHS OF INTERVIEWS?

  • participants may be happier to disclose personal information
  • participants able to ask for clarity if unsure
• WHY MAY PARTICIPANTS BE HAPPIER TO DISCLOSE PERSONAL INFORMATION IN INTERVIEWS THAN QUESTIONNAIRES?

  investigator able to build a rapport with them
• WEAKNESSES OF INTERVIEWS?

  • investigator bias more likely
  • less cost-effective
• WHY IS INVESTIGATOR BIAS MORE LIKELY IN INTERVIEWS THAN QUESTIONNAIRES?

  investigator is present
• WHY ARE INTERVIEWS LESS COST-EFFECTIVE THAN QUESTIONNAIRES?

  • researchers need specialist training to administer report
  • funding required for training and time to carry out self-report