External validity Flashcards
1
Q
what is internal validity?
A
When a study measures what it claims to measure and has no extraneous variables.
2
Q
what is external validity?
A
when results can be generalise to situations and other people.
3
Q
what are 3 types of external validity?
A
- ecological = generalise to how people behave in everyday life.
- temporal = when results generalise across time
- population = when results are generalised to other populations
