Validity

Question 1

What is validity

Answer 1

Refers the extent to which an observed effect is genuine

Question 2

What is internal validity

Answer 2

The extent to which a test measures what it is supposed to measure - are the effects due to the manipulation of the IV and not some other factor.

Question 3

What is external validity

Answer 3

The extent to which results can be generalised outside of the research setting

Question 4

What are the three forms of external validity

Answer 4

1. population validity
2. temporal validity
3. ecological validity

Question 5

What is population validity

Answer 5

A form of external validity- the extent to which findings from a study can be generalised to other people

Question 6

What is temporal validity

Answer 6

A form of external validity- the extent to which findings from a study can be generalised to other particular time periods

Question 7

What is ecological validity

Answer 7

A form of external validity- the extent to which findings from a study can be generalised to other settings

Question 8

What is mundane realism

Answer 8

Refers to how realistic the task in the experiment is- if an experiment has low mundane realism then the task is not similar to real life and this leads to low external validity

Question 9

What are two ways of assessing validity

Answer 9

1. face validity- the extent to which test items look like what the test claims to measure
2. concurrent validity- the extent to which a psychological measure relates to an existing similar measure. Give same group a similar, established measure and check to see if both sets of scores are positively correlated.