Criticising/praising experiments

Psychological terms. PSYA2. methodological and ethical evaluation for A02. AQA A.

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  • Created by: Jenna
  • Created on: 01-10-11 15:57

Psychological Terms

 

PSYCHOLOGICAL TERMS

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What is internal validity/ experimental validity?

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The extent to which the procedure successfully measures what it intended.

PRAISE if high

CRITICISE if low

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FACTORS AFFECTING INTERNAL VALIDITY

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  • volunteer bias
  • social desirability
  • experimenter effects
  • evaluation apprehension
  • retrospective self-report
  • experimenter bias
  • demand characteristics

 

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What is volunteer bias?

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These volunteers may represent a certian type of personality which may affect the finidings or make them invalid.

 

 

PRAISE if low

CRITICISE if high

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What is social desirability?

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When the participant feels embarassed about their responses or behaviour which causes a change in their natural behaviour.

 

 

 

PRAISE if low

CRITICISE if high

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What is experimenter bias?

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When some aspect of the experimenter causes the participant to behave unnaturally.

 

 

 

PRAISE if low

CRITICISE if high

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What is evaluation apprehension?

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This occurs when the participant becomes concerned their behavious may be judged, possibly causing a change in their natural behaviour.

 

 

PRAISE if low

CRITICISE if high

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What is retrospective self-report?

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This is a method where participants are asked about their past. This can be unreliable as they may not give accurate responses due to memory failure, reconstruction or repression.

 

 

 

PRAISE if low

CRITICISE if high

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What is experimenter bias?

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Occurs when the experimenter shows unintentional bias in recording and interpreting data in an effort to support their alternative hypothesis.

 

 

 

PRAISE if low

CRITICISE if high

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What are demand characteristics?

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This occurs when participant percieve the demands of an study and act accordingly, causing a change in their natural behaviour.

 

 

 

PRAISE if low

CRITICISE if high

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