Evaluation

• Questionnaires

  Strengths:

  • Cost and time effective
  • Usually easy to analyse

  Limitations:

  • Responses may not be truthful
  • Demand characteristics - social desirability bias
  • Response bias
  • Acquiescence bias
• Interviews

  Structured interviews:

  • Easy to replicate
  • Standardised
  • Not possible to deviate from topic
  • Limited detail of data
  • Limit unexpected information

  Unstructured interviews:

  • Much more flexible
  • Increased risk of interviewer bias
  • Harder to analyse
  • Social desirability