Variables Flashcards
1
Q
What are extraneous variables?
A
Variables aside from the IV that could influence the measurement of the DV
2
Q
Give some examples of extraneous variables
A
- demand characteristics
- participant variables
- situational variables
- order effects
3
Q
What is a confounding variable?
A
A variable other than the IV that changes systematically between the levels of IV, usually innate
4
Q
How to control extraneous variables?
A
- participant variables = random allocation or matched pairs
- order effects = counter balancing
- situational variables = standardised procedures
- demand characteristics = single/double blind trials
5
Q
What are pilot study?
A
- small scale practise investigation
- researcher can improve all aspects
- Design, method, analysis
- findings are irrelevant
6
Q
Why are standardised procedures important?
A
- control can be achieved
- so procedure can be consistent
- if not standardised then we are not sure if IV is manipulating DV
7
Q
What is peer review?
A
Researcher shows study to other experts and get feedback and can find extraneous variables
