experiments - validity Flashcards
1
Q
validity definition
A
researcher measuring what they intend to measure
2
Q
2 main types of validity
A
- internal validity
- external validity
3
Q
3 types of external validity
A
- ecological
- temporal
- population
4
Q
2 types of internal validity
A
- face validity
- concurrent validity
5
Q
what is internal validity
A
- if researcher is measuring what they intend to measure
- if the IV the only thing affecting the DV
6
Q
what can internal validity be affected by
A
- extraneous variables such as:
- demand characteristics
- researcher bias
- order effects
- social desirability
- investigator effects
7
Q
what is external validity
A
If findings can be generalised outside the study
8
Q
what is ecological validity
A
- type of external validity
- if findings can be generalised beyond setting of study to other real life settings
9
Q
what is population validity
A
- type of external validity
- extent to which findings can be generalised beyond sample to target population
10
Q
what is temporal validity
A
- type of external validity
- extent to which findings can stay true over time
- can be generalised to other time periods
11
Q
lab experiments
A
- high internal validity
- low eco val
12
Q
field experiments
A
- low internal validty
- high eco val
13
Q
natural experiments
A
- low internal validity
- high eco val
14
Q
2 ways of assessing validity
A
- face validity
- concurrent validity
15
Q
face validity AO1
A
- independent psychologist in the same field looks at experimental conditions
- questions in questionnaire
- categories in observations
- to see if they are measuring what they intend to measure CONTEXT
- researcher says yes = face validity
