RM: Reliability Flashcards
What is reliability?
Measure of consistency where if repeated the same results would be obtained
What ways can reliability be tested?
Test retest
Interobserver
What is test retest?
The same test is given to the same person on two or more occasions to determine if the results are the same and reliable
What is interobserver?
Two or more observers compare the data by conducting pilot studies to check that behavioural categories are being applied in the same way
What correlation should be exceeded to be considered reliable?
+ 0.80
How can questionnaires be made more reliable?
Questions can be rewritten so that open ended questions are replaced with fixed closed questions
How can interviews be made more reliable?
The same interviewer should be used or all trained in same way
How can an observation be made more reliable?
All behavioural categories should be operationalised, none absent or overlapping (no room for own judgement)
How can experiments be made more reliable?
Use standardised procedures
