Wednesday, 26 March 2008

Psychology: Assessing and Improving Validity

What is validity?

-Validity: the extent to which something measures what it sets out to measure

What is internal validity?

-The extent to which research findings are due to the mechanisms suggested

What is external validity?

-The extent to which results can be generalised to settings beyond those of the study context
1)Population validity: extent to which research findings can be generalised to other groups of people
2)Ecological validity: extent to which results can be generalised to situations outside those of the research settings

No comments: