reliability in psychological research

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1. techniques for improving reliability: ensure all researchers behave in a consistent way when gathering data- reserchers should be trained in the same procedures used in the study. With observations for research where CA is used- clearly op categorie

  • external reliability
  • researcher reliability
  • internal
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2. techniques for checking reliability: the split half method. socres on one half of the test are corralted with scores on the other half. If participant scores demonstrate a high positive correlation then the test is reliable

  • internal
  • external reliability
  • researcher reliability

3. techniques for checking reliability: test retest method. Carry out the experiment in exactly the same way with a different group of participants. If the same results are achieved then the experiment is reliable.

  • internal
  • external reliability
  • researcher reliability

4. techniques for improving reliability: if reliability is low for a questionnaire, list of words etc remove one word at a time repeating the split half method each time until reliability is good

  • internal
  • external reliability
  • researcher reliability

5. techniques for improving reliability: if relibility is low for a qestionariwe ect reomve eatch word one at a time repetaing the test re test methord eatch time until reliability is good. If reliability remains low-necessary to change standardise inst

  • internal
  • external reliability
  • researcher reliability

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