Reliability & Validity Flashcards
What is reliability?
When a piece of research is repeated using the same method, the same results are obtained.
What is validity?
The extent to which a test or piece of research measures what it claims to be measuring. (there is internal and external validity)
What is INTERNAL validity?
The extent to which the researcher is measuring what was intended.
What is EXTERNAL validity?
The extent to which the results can be generalised beyond the research setting.
Types of EXTERNAL validity and their definitions?
Ecological validity - the extent to which research findings can be generalised to situations other than the research setting.
Population validity - the extent to which results from research can be generalised to the target population.
Historical/ temporal validity - where the findings from research that took place at a certain point in time accurately reflect the way that behaviour would occur at a different point in time.
