Research Methods:Extraneous Variables Flashcards

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1
Q

Extraneous variables

A

Factors that can affect the dependant variable

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2
Q

Confounding variables

A

The variable that affects one condition more than the other, so it confounds the result.

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3
Q

Participant variable

A

Individual differences

Age, Gender, Memory, Participant reactivity.

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4
Q

Controls for participant variables

A

Large and random sample of participants
Repeated measures or matched pairs design
Random allocation of participant - only for independent group design

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5
Q

Situational variables

A

Aspects of the environment or experiment which could affect DV.
Time of day, heat, demand characteristics, order effect.

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6
Q

Experimenter variable

A

Aspects of experimenter which could affect participants.

Tone of voice, body language, bias.

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7
Q

Controls of experimenter variables

A

Double blind

Inter-rater reliability

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8
Q

Situational variable controls

A

Standardisation of instructions and procedures.
Reduce order effect by counterbalancing.
Reduce demand characteristics by deception or single blind

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