reliability

Question 1

what is reliability

Answer 1

• how consistent a measuring device is

Question 2

what is test retest reliability

Answer 2

• administer the same questionnaire or test to the same people on different occasions
• shows to what extent the test produces the same answers

Question 3

what is inter-observer reliability

Answer 3

• agreement between two observers involved in measuring behaviour

Question 4

how do questionnaires improve reliability

Answer 4

• produces a low-test retest reliability may require components to be removed
• replace open questions with closed fixed alternatives

Question 5

how do interviews improve reliability

Answer 5

• all interviewers need to be properly trained
• cannot ask questions too leading
• need more structured interviews
• unstructured are more unreliable

Question 6

how do observations improve reliability

Answer 6

• behavioural categories have to be properly operationalised
• categories shouldn’t overlap
• observers may need further training

Question 7

how do experiments improve reliability

Answer 7

• procedures must be the same and consistent throughout
• have to have standardised procedures