Reliability

Question 1

Reliability

Answer 1

Refers to how consistent a measuring device is

Question 2

What are the 4 ways to assess reliability

Answer 2

• Test-retest reliability
• Inter-observer reliability
• Inter-rater reliability
• Inter-interviewer reliability

Question 3

Test retest reliability

Answer 3

Assess reliability of a questionnaire by assessing the same person on two separate occasions

Question 4

Inter observer reliability

Answer 4

Extent to which there is a agreement between two or more observers involved in observations of behaviour

Question 5

Inter rater reliability

Answer 5

A research technique that indirectly studies behaviour by examining communications that people produce

Question 6

Inter interviewer reliability

Answer 6

Measured during interviews, where he interview is conducted by two or more different people and then will compare conclusions

Question 7

How to measure reliability

Answer 7

Through correlation coefficient

Question 8

Correlations and reliability

Answer 8

If a study is reliable it will produce a correlation coefficient of 0.8 (strong relationship)

Question 9

Ways to improve reliability in questionnaires

Answer 9

• Test retest
• If low retest reliability, sme items need to be rewritten or deselected
• Closed, fixed choice questions

Question 10

Ways to improve reliability in interviews

Answer 10

• Same interviewer(s)
• Train all interviewers
• Provide the interviewer with a list of questions to ask

Question 11

Ways to improve reliability in observations

Answer 11

• Behavioural categories
• Ensure categories don’t overlap
• If reliability is low ten observers may require further training

Question 12

Ways to improve reliability in experiments

Answer 12

• Procedure is the focus
• Standardised instructions