Experimental Design

Question 1

What is independent groups design?

Answer 1

• involves 2 or more separate groups of participants
• participants randomly allocated to one condition

Question 2

What is repeated measures design?

Answer 2

Each participant takes part in both/all conditions

Question 3

What is matched pairs design?

Answer 3

• Pairs of participants are created by each participant in one condition being matched as closely as possible on specific criteria
• criteria may are matched on should be relevant to the study
• Used to reduce problems of individual differences

Question 4

What are me strengths/limitations of independent groups design?

Answer 4

✓ no demand characteristics
X can’t control extraneous variables/ individual differences

Question 5

What are the strengths/ limitations measures of repeated design?

Answer 5

✓ no individual differences
✓ no confounding variables
X order effects
X demand characteristics

Question 6

What are the strengths/limitations of matched pairs design?

Answer 6

✓ no order effects
✓ less likely for individual differences
X time consuming