validity

Question 1

validity

Answer 1

the extent to which results are legitimate

Question 2

internal validity

Answer 2

whether the outcomes of a study is due to the manipulation of the iv and not any other factor
can be influenced by:
- confounding and extraneous variables
- investigator bias
-confounding variables

Question 3

external validity

Answer 3

• relates to factors outside the study

Question 4

types of external validity

Answer 4

temporal validity
-generalisability to other times and generations

ecological
- extent to which findings can be generalised to other settings

Population
- extent to which findings can be generalised to other populations

Question 5

Ways of assessing validity

Answer 5

Face validity
- this is when a measure is scrutinised to determine whether it measures what it is supposed to

concurrent validity
- extent to which a psychological measure compares to an existing measure
. results should match or be similar

predicative validity
- refers to how well a test can predict future events

Question 6

Ways of improving validity in
-experimental research
-observations
-questionnaires
-qualitative methods

Answer 6

1 - using a control group - single and double blind studies
2 -covert observations - behavioural categories
3 - anonymous data , incorporate lie scale to asses consistency of answers
4 - triangulation - the use of a number of different sources