Control of variables Flashcards
1
Q
Define ‘control’ in psychology.
A
The extent to which any variable is held consistent or regulated by a researcher.
2
Q
Explain the difference between external and internal validity.
A
External: generalisability
Internal: Extent to which observed effect was due to experimental manipulation rather than EVs or CVs.
3
Q
Define validity.
A
Whether an observed effect is genuine, accurate and true.
4
Q
State and define the three types of external validity.
A
Ecological - generalisability to other settings
Population - generalisability to other groups of people
Historical - generalisability over time / to other periods of time
