Experimental Design

Question 1

Independent measures design is:

Answer 1

In an experiment with 2 conditions, participants will only take part in one condition of the experiment.

Question 2

Repeated measures design is:

Answer 2

Participants take part in both conditions of the experiment where there is only 1 group

Question 3

Matched pairs design is:

Answer 3

Participants are matched in each condition for characteristics that may have an effect on their performance. eg. IQ may have an effect on results and performance, thus higher and lower are matched and placed in 2 separate conditions.

Question 4

Strengths of independent measures

Answer 4

Time efficient, less order effects, less prone to demand characteristics

Question 5

weaknesses of independant measures

Answer 5

Participant variables

Question 6

Strengths of repeated measures

Answer 6

Participant variables are reduced due to the same pool of people being used, fewer people need to participate so it saves time

Question 7

Weaknesses of repeated measures

Answer 7

Order effects, demand characteristics

Question 8

Strengths of matched pairs

Answer 8

Reduced participant variables, less order effects, more accurate results

Question 9

Weaknesses of matched pairs

Answer 9

Time consuming, extremely inconvenient, matches are never perfect