Experimental design

Question 1

What is independent group design

Answer 1

Participants take part in 1 condition (assigned through random sampling technique)

Question 2

Strengths, weaknesses and how to deal with it(IGD)

Answer 2

Strengths:
No order effects e.g. boredom/fatigue
Less demand characteristics

Weaknesses:
Participant variables
More participants needed

How to deal with weakness:
Random allocation to prevent participant variables

Question 3

What is repeated measures design

Answer 3

Participants take part in both conditions

Question 4

Strengths, weaknesses and how to deal with it(RMD)

Answer 4

Strengths:
Less participants needed
Reduces participant variables

Weaknesses:
Demand characteristics
Order effects

How to deal with weakness:
Counter balancing - ABBA principle

Question 5

What is matched pairs design

Answer 5

Participants are paired together based on relevant variables

Question 6

Strengths, weaknesses and how to deal with it(MPD)

Answer 6

Strengths:
Reduces participant variables
No order effects

Weaknesses:
Time consuming
Can’t remove all participant variables

How to deal with weakness:
Pilot study - Rules out irrelevant variables

Question 7

What is a pilot study

Answer 7

Small scale study to identify methodological problems