Experimental design (Independent, RM, Matched)

Question 1

independent groups design

Answer 1

different participants are used in each condition

Question 2

repeated measures

Answer 2

the same participants are used in each condition

Question 3

matched pairs

Answer 3

different participants are used in each condition but participants are matched on variables deemed relevant to the experiment e.g., according to an ability or age etc.

Question 4

independent groups strengths and limitations

Answer 4

strengths:
*Reduces order effects
*Reduces demand characteristics

limitations:
*Introduces participant variables (overcome with random allocation)

Question 5

repeated measures strengths and limitations

Answer 5

strengths:
*Eliminates Participants Variables

limitations:
*Order effects
(overcome with counterbalancing)
*Increases Demand Characteristics

Question 6

matched pairs strengths and limitations

Answer 6

strengths:
*Balances out the weaknesses of independent groups and repeated measures

limitations:
*Can be practically difficult to complete and has time and cost implications