The extent to which the procedure successfully measures what it intended.
PRAISE if high
CRITICISE if low
4 of 20
FACTORS AFFECTING INTERNAL VALIDITY
5 of 20
volunteer bias
social desirability
experimenter effects
evaluation apprehension
retrospective self-report
experimenter bias
demand characteristics
6 of 20
What is volunteer bias?
7 of 20
These volunteers may represent a certian type of personality which may affect the finidings or make them invalid.
PRAISE if low
CRITICISE if high
8 of 20
What is social desirability?
9 of 20
When the participant feels embarassed about their responses or behaviour which causes a change in their natural behaviour.
PRAISE if low
CRITICISE if high
10 of 20
What is experimenter bias?
11 of 20
When some aspect of the experimenter causes the participant to behave unnaturally.
PRAISE if low
CRITICISE if high
12 of 20
What is evaluation apprehension?
13 of 20
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
14 of 20
What is retrospective self-report?
15 of 20
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
16 of 20
What is experimenter bias?
17 of 20
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
18 of 20
What are demand characteristics?
19 of 20
This occurs when participant percieve the demands of an study and act accordingly, causing a change in their natural behaviour.
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