Validity & Reliability

What is meant by internal validity?

• Can the study be replicated?

• Does the study measure what it intends to?

• How you can apply the study

• What the ethics of the study are

What is external validity?

• Does the study measure what it aims to?

• Can the study findings be generalised to other contexts?

• Is the study conducted outside?

• The ethics within the study

What is meant by the term face validity?

• Whether it looks like it will measure what it is supposed to measure

• It measures the ecological content of the study

• Measures the predictiveness of the study

• Measures the comparison of the current test to an older one

What is concurrent validity?

• Comparing a new test with an old test

• Comparing the outside generalisation of the study with the sample size

• Where it the results were predicted

• Whether the null hypothesis was met

What is content validity?

• Predicts individual performance of participants in the study

• The extent to which the contents of the test seeks to measure what it is supposed to

• Whether two tests of similar qualities measure the same thing

• Does it measure what it set out to

What is meant by predictive validity?

• comparing two tests together fro similar results

• predicts individual performance

• How far into the study the participants made before withdrawing

• Whether a study shows similar results to a past one

What is meant by construct validity?

• Comparing one test to others that measure similar qualities to see how highly correlated they are

• How well a study is made

• Whether the study looks promising

• How well the study can be generalised to a wider population

What is meant by ecological validity?

• Can the study be applied to a wider population and different areas

• Can the study be applied to a smaller population

• How well the study is conducted

• Whether the study predicts the results of other studies

What is reliability?

• Can it be repeated?

• Does it measure what it intends to?

• Can you trust it?

How can you measure consistency?

• Test Re-test method

• Ask someone

• View the hypothesis

• Matched pairs