experimental design

Question 1

define repeated measures

Answer 1

same participants are allocated to all groups and take part in all conditions

Question 2

advantages of repeated measures

Answer 2

fewer participants needed
participant variables are controlled

Question 3

disadvantages of repeated measures

Answer 3

order effects
demand characteristics

Question 4

define independent measures

Answer 4

where participants only experience one condition

Question 5

advantages of independent measures

Answer 5

no order effects
fewer demand characteristics

Question 6

disadvantages of independent measures

Answer 6

more participants required
participants variables

Question 7

define matched pairs

Answer 7

participants only take part in once condition but matched on a specific ability or relevant characteristic

Question 8

advantages of matched pairs

Answer 8

no order effects
participant variables more controlled

Question 9

disadvantages of matched pairs

Answer 9

expensive
time consuming
perfect match impossible
more participants required