Research Designs Flashcards
1
Q
What is research design?
A
Research design refers to how the PPs are assigned to different conditions of the IV in an experiment.
2
Q
How many types of research design are there?
A
3
3
Q
What is an Independent Groups Design?
A
- Where different PPs take part in each experimental condition (allocated randomly).
4
Q
Strengths of IGD
A
- Order effects are not present as PPs take part once
- Data collection will be less time-consuming if all conditions are conducted at the same time
5
Q
Weaknesses of IGD
A
- Different PPs need to be recruited for each condition = difficult and expensive.
- A risk of PP variables affecting the results between conditions.
6
Q
What is Repeated Measures Design?
A
- Where the same PPs are allocated to all groups of an experiment
7
Q
Advantages of RMD
A
- Results not subject to PP variables –> More likely to have valid cause and effect
- Extra PPs do not need to be recruited
8
Q
Disadvantages of RMD
A
- Risk of observing order effects as same PPs in each condition
- If a PP drops out, data will be lost from all conditions of the experiment
9
Q
What is a Matched Pairs Design?
A
- Where PPs only take part in 1 experimental condition, but they’re recruited specifically to be similar in relevant characteristics to PPs in other conditions.
10
Q
Strengths of MPD
A
- No order effects - PPs take part in one condition.
- Tailored-PP matching process reduces the risk of PP variables affecting results between conditions
11
Q
Weaknesses of MPD
A
- Different PPs need to be recruited for each condition - difficult and expensive.
- Matching is a complex process and it will always be difficult to match PPs identically.
