Reliability

• Reliability


  consistency of a researcher / test
• Inter observer reliability

  extent to which there is agreement between 2 or more observers

  result of >0.8 indicates good inter rater reliability
• Test retest


  -tests reproducibility

  gives same test to Ps on 2 occasions to see if same results are obtained
• Observations - improving reliability

  • clear categories of behaviour
  • operationalise clearly
  • categories should not overlap
  • trained observers
• Self report techniques - improving reliability

  • test retest
  • rewrite ambigous questions
• Experiments - improving reliability

  • standardised so ps follow same procedures