Validity

Question 1

What is validity?

Answer 1

Whether and observed effect in genuine

Question 2

What are ways to asses validity?

Answer 2

Face and concurrent

Question 3

What is face validity?

Answer 3

When a measure is scrutinised to determine whether it appears to measure what it is supposed to measure

Question 4

What is concurrent validity?

Answer 4

The extent to which a psychological measure relates to an existing similar measure

Question 5

How do you assess concurrent validity?

Answer 5

Compare with another study and calculate the correlation between the findings and if the coefficient is 0.8 or higher, it is a valid measure

Question 6

How do you assess face validity?

Answer 6

Show the study to a professional in the field and ask them it is a valid way of measuring

Question 7

What are ways of improving validity?

Answer 7

Standardisation, anonymity, pilot studies, lie scale, representative sample, controlled lab experiments, blind procedures and accurate behavioural categories

Question 8

How do you improve internal validity of laboratory experiments?

Answer 8

Use blind procedures and operationalise varibales

Question 9

How do you improve external validity of laboratory experiments?

Answer 9

Replicate the study with different participants or control group and make both IV and Dv as true to real life as possible

Question 10

How do you improve internal validity of observations?

Answer 10

Use more than one observer, train all observers in what they are observing, assess coding system for concurrent validity and check behavioural checklist

Question 11

How do you improve external validity of observations?

Answer 11

Observe as many people as possible, including a representative example of target population, use covert observations so particpants don’t change behaviour and adjust behaviour checklist is behaviour changes over time with social norms

Question 12

How do you improve internal validity of questionnaires?

Answer 12

Amend questions to be a valid representation of behaviour if has low construct validity

Question 13

How do you improve external validity of questionnaires?

Answer 13

Make the questionnaire as accessible to as many people as possible it improve response rate e.g. put it online and make sure questions are up to date with social norms

Question 14

How do you improve external validity of questionnaires?

Answer 14

Make the questionnaire as accessible to as many people as possible it improve response rate e.g. put it online and make sure questions are up to date with social norms