experimental designs

Question 1

experimental designs

Answer 1

the different ways in which participants can be organised in relation to experimental conditions

Question 2

independent measures

Answer 2

participants are allocated to different groups where each group represents one condition

Question 3

repeated measures

Answer 3

all participants take part in all conditions of the experiment

Question 4

matched pairs

Answer 4

participants are matched by similar variables that may effect the dv. one group is condition A and the other is B

Question 5

counterbalancing

Answer 5

an attempt to control order effects in repeated measures (ABBA)

Question 6

random allocation

Answer 6

an attempt to control for participant variables in independent groups which ensures each participant has an equal chance of being in one condition

Question 7

individual measures ao3

Answer 7

• no order effects. practice or fatigue effects
• individual differences can effect the DV.

Question 8

repeated measures ao3

Answer 8

individual differences are controlled
- deterioration due to tiredness or boredom
- improvement due to practice

Question 9

matched pairs ao3

Answer 9

• less CV caused by individual differences, no order effect
• difficult, time consuming