Scientific Processes: Variables, Demand Characteristics and Investigator Effects

Extraneous Variable
This is any variable other than the IV that may have an effect on the DV if it is not controlled. This could include any change in environmental conditions such as background noise or time of day.
1 of 5
Confounding Variable
This is any variable other than IV that may have affected the DV so we cannot be sure of the changes to the DV.
2 of 5
Demand Characteristics
Any cue from the researcher or research situation that may be interpreted by participants as revealing the purpose/ aim of the investigation; this may lead a participant to change their behaviour within the research situation.
3 of 5
Investigator Effects
This is when the person collecting the data has knowledge of what the research aim is and that knowledge affects the data obtained (consciously or unconsciously). This may include the design of the study, the selection of participants or interaction
4 of 5
Research Methods
Research Methods
5 of 5

Other cards in this set

Card 2

Front

This is any variable other than IV that may have affected the DV so we cannot be sure of the changes to the DV.

Back

Confounding Variable

Card 3

Front

Any cue from the researcher or research situation that may be interpreted by participants as revealing the purpose/ aim of the investigation; this may lead a participant to change their behaviour within the research situation.

Back

Preview of the back of card 3

Card 4

Front

This is when the person collecting the data has knowledge of what the research aim is and that knowledge affects the data obtained (consciously or unconsciously). This may include the design of the study, the selection of participants or interaction

Back

Preview of the back of card 4

Card 5

Front

Research Methods

Back

Preview of the back of card 5

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