Repeated

• A repeated group is when you use the same participants in each condition.
• Strengths -

  • uses fewer participants, saves time and money
  • participant variables are not a concern
  • each participant acts as their own control, reduces the effect of individual differences
• limitations -

  • order effects like boredom and fatigue which may affect performance.
  • increased chance of demand characteristics, have more chances of guessing the aim.
  • lack of control, cant use a same set of stimulus material in both conditions