module 5 Flashcards
(10 cards)
What are the three main types of experimental designs?
A: Between-groups, repeated-measures, and matched-subjects designs.
What is a between-groups design?
A: A design where different groups of people are in each experimental condition.
What are two advantages of between-groups designs?
A: No order effects, and no need to duplicate or match materials.
What are two disadvantages of between-groups designs?
A: Individual differences between groups and a need for more participants.
What is a repeated-measures design?
A: A design where the same participants complete all experimental conditions.
What are two advantages of repeated-measures designs?
A: Controls for individual differences and requires fewer participants.
What are order effects in repeated-measures designs?
A: Changes in performance due to the order of conditions, including practice, fatigue, carry-over, and sensitisation effects.
How can order effects be controlled?
A: By using counterbalancing, Latin Squares, or randomising the condition order.
Why are repeated-measures designs considered more powerful?
A: They reduce error from individual differences and provide more data per participant.
What is a matched-subjects design?
A: Participants are matched on relevant variables and then assigned to different groups, combining elements of both other designs.
