Extraneous Variables

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What is a participant variable?
Any characteristic of a pp. Only acts as an EV if independent groups design is used.
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Name some examples of participant variables?
Age, intelligence, motivation, experience, gender.
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What are situational variables?
Features of a situation tat may influence pps behaviour.
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Examples of situational variables?
Order effects, time of day, temperature, noise
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What are investigator effects?
Anything that the investigator does which may have an effect on a pps performance (directly or indirectly).
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What are demand characteristics?
A cue that makes pps aware of what the researcher expects to find, or how they are expected to behave.
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What is the Hawthorne effect?
The tendency for pps to alter their behaviour as a result of knowing that they are being observed.
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What is investigator bias?
The effect that an investigator's expectations have on the pps.
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Card 2

Front

Name some examples of participant variables?

Back

Age, intelligence, motivation, experience, gender.

Card 3

Front

What are situational variables?

Back

Preview of the front of card 3

Card 4

Front

Examples of situational variables?

Back

Preview of the front of card 4

Card 5

Front

What are investigator effects?

Back

Preview of the front of card 5
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