Experimental Design Str/Wea

Question 1

What are the three experimental designs

Answer 1

.Repeated measures
.Independent groups
.Matched pairs

Question 2

Strengths of repeated measures.

Answer 2

. It’s convenient

. You don’t need to account for individual differences

Question 3

Weaknesses of repeated measures.

Answer 3

. Order effects

such as Demand characteristics, boredom and tiredness

Question 4

How do you mitigate order effects?

Answer 4

Counterbalencing, by which multiple groups are made so that no group will have to do the same variable more than once.

Question 5

Strengths of independent groups.

Answer 5

. No order effects will arise

. Less demand characteristics than the other two designs

Question 6

Weakness of independent groups.

Answer 6

. You must acknowledge the individual differences between participants when comparing

Question 7

Strengths of matched pairs

Answer 7

. Allows for a comparison to be made between the results of the two participants matched, perhaps one is in a control group
. Reduces demand characteristics
. Representative

Question 8

Weaknesses of matched pairs

Answer 8

. Not every characteristic can be represented

. Not every participant might be able to be appropriately matched based on a characteristic.