Repeated measures

• What is a repeated measures design?

  The same group is used again in the different conditions.
• What is a strength of repeated measures designs?

  They use the same group for both conditions. This is a strength as it avoids the problems of individual differences between groups as the groups are the same.
• What is a strength of repeated measures designs?

  They require less participants due to the same group being used. This is a strength as less time is required to find participants for two groups.
• What is a weakness of repeated measures designs?

  They use the same group twice. This is a weakness as it increases the chances of order effects.
• What is a weakness of repeated measures designs?

  Participants take part in all conditions. This is a weakness as due to going through multiple conditions, participants may be more likely to guess the aim of the study, therefore demand characteristics may occur.
• What is a weakness of repeated measures designs?

  Researchers only have one group of participants to study. This is a weakness as if one participant drops out, they have results lost from multiple conditions.