Week 8 Flashcards

1
Q

What are extraneous variables?

A

Variables that can impact the outcome.
Only effect the DV.
Unsystematic error - random errors

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2
Q

What are confounding variables?

A

Systematic error
Affects DV and IV

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3
Q

How do you counteract a systematic error?

A
  • counterbalancing
  • standardisation
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4
Q

How do you counteract unsytematic?

A
  • use matched pairs
  • control for participant variables
  • more participants
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5
Q

What is power?

A

The probability of correctly rejecting the null hypothesis

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6
Q

How to help power?

A
  • more participants
  • ceiling and floor effects
  • use matched pairs
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