Validity

Question 1

internal validity

Answer 1

research is measuring what it claims to measure

Question 2

external validity

Answer 2

research reflects what’s going on in world outside the research:

ecological= research scenario reflects behaviour in real world

population= sample selected reflects target population

Question 3

ways of dealing with issues of validity

Answer 3

researcher bias- double-blind condition OR using researcher who isn’t aware of hypothesis

demand characteristics- use ID or MP design- if not possible, use ‘mild deception’

social desirability- informing Ps answers are confidential. maybe ‘lie’ scale if using questionnaire

Question 4

assessing validity

Answer 4

face validity = whether test appears to measure what it claims to

content validity = ask expert to check test is valid

construct validity = whether overall results reflect phenomena as a whole (external validity)

concurrent validity = validate a measurement by comparing it with an established measurement that has known validity

predictive validity = degree to which a test accurately forecasts a future outcome