Week 7

Question 1

repeated measures design/within subject design

Answer 1

design in which two sets of data are obtained from the same group of participants

Question 2

matched subject study

Answer 2

each individual in one sample is matched with an individual in the other sample, and two individuals are equivalent to a specific variable

Question 3

advantages of repeated measures design

Answer 3

• number of subjects is fewer in repeated measures design
• study changes over time, you use repeated measures
• longitudinal designs are responsible with more confidence in causal effects
• allows for baselining
• repeated-measure designs reduce/eliminate problems caused by individual differences

Question 4

disadvantages of repeated measures design

Answer 4

• participant loss (in longitudinal designs)
• order effects
• sometimes it is practically difficult

Question 5

order effect

Answer 5

changes in scores that are caused by participation in earlier treatment
- solutions: counterbalancing