Validity

Question 1

What is validity

Answer 1

The degree to which something measures what it claims to and the extent to which findings can be generalised.

Question 2

Internal validity

Answer 2

The degree to which a study establishes accurate cause and effect relationship (results due to manipulation of IV, not extraneous variables)

Question 3

External validity

Answer 3

The extent to which findings can be generalised to situations out of research environment

Question 4

Threats to validity

Answer 4

Extraneous / confounding variables
Demand characteristics
Investigator effects
Leading questions

Question 5

Ecological validity

Answer 5

External validity
Extent to which psychologists can apply findings to real life settings

Question 6

Temporal validity

Answer 6

External validity
Extent to which findings can be applied across time to diff contexts

Question 7

Population validity

Answer 7

External validity
How well a sample can be generalised to wider population

Question 8

Face validity

Answer 8

Internal validity
Extent to which self-reports measure what they are claiming to

Question 9

Concurrent validity

Answer 9

Internal validity
Comparing performance in tests to already recognised tested that are trusted to validify results

Question 10

Improving validity of questionnaires

Answer 10

Lie scale, check for honesty and social desirability bias. Do this by having 2 qs asking same thing and anonymity

Question 11

Improving validity of interviews

Answer 11

Using direct quotes, triangulation which is using diff sources as evidence like diaries or interviews with family

Question 12

Improving validity of experiments

Answer 12

Control group to see effect of IV on DV
Standardise procedure limit investigator effects and demand characteristics

Question 13

Improving validity of observations

Answer 13

Narrow behaviour categories and covert observations