Reliability

Question 1

Reliability Definition

Answer 1

Reliability in research is needed in order to trust the results

Question 2

External reliability

Answer 2

Refers to the extent to which a measure varies from one use to another

Question 3

Internal reliability

Answer 3

Assesses the consistency of results across items within a test

Question 4

How can reliability be assessed?

Answer 4

• Test-retested method assessed the external consistency for a test which refers to the degree to which different raters give consistent estimates of the same behaviour.
• Inter-rater reliability can be used for interviews - if the data is similar it’s reliable

Question 5

How can reliability be improved?

Answer 5

Through experimental methods
• increase the number of reps of each measurement and use average
• repeat single measurements and look at the difference