Validity/Reliability Flashcards
(11 cards)
What is validity?
The extent to which an assessment tool actually measures what it is designed to measure.
What is reliability?
The extent to which an assessment tool measures what it is supposed to measure consistently.
How do you check validity?
Compare findings with other tests, eliminate extraneous variable.
How do you check reliability?
Retest.
What is construct validity?
It refers to the extent to which variables used in the research adequately assess the conceptual variables they were designed to measure.
What is statistical conclusion validity?
The extent to which we can be certain that a researcher has drawn accurate conclusions about the statistical significance of the research.
What is internal validity?
The extent to which we can trust the conclusions that have been drawn about the relationship between the IV and the DV.
A high internal validity would mean extraneous variables and confounding variables are properly controlled for.
What is external validity?
The extent that the research can be generalised to the population from which the sample was drawn or the target population.
A high external validity would mean that the sample is properly representative of the target population, usually through the use of random or stratified sampling.
What is experimental reliability?
The likelihood that another experimenter can perform the same experiment with the same conditions and gain the same results.
What is interal reliability?
The measure of how well each item in the ‘test’ equally contributes to the overall measurement, testing if the results are consistent within one test.
What is external reliability?
A measure of how consistent two experimenters give the same score for the same behaviour.
