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6. State a disadvantage of the repeated measures design

  • Participants can do better in the second trail as they may improve with practise (The ORDER EFFECT)
  • Cannot control key variables
  • Participants arr unhappy
  • Researchers get confused as this stage

7. State one disadvantage of the Independent groups design

  • The two groups can fight when the researchers transfer them
  • People may turn up with too much confidence, given in valid findings
  • Differences recorded may be due to indivdual differences, not the independent variable
  • The variables are not controlled