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8 Cards in this Set
- Front
- Back
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Reliability |
How consistent the findings from an investigation or measuring device are. Can it be repeated with the same findings |
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2 ways of assessing reliability |
Test-retest Inter-observer reliability |
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Test-retest |
Method of assessing reliability of a questionnaire or psychological test by assessing same person on different occasions. These are then correlated and if significant then they are reliable. Cant be too short or long a time before the retest |
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Inter-observer reliability |
The extent to which there is agreement between 2 or more observers. Results correlated..needs to be +.8 |
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Improving reliability of questionnaires |
Use test retest. If not good then some questions may need to be rewritten if amibuous. Use closed questions |
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Improving reliability of interviews |
Use same interviewer each time if not train them all. Use structured interviews |
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Improving reliability of experiments |
Lab experiments and contolled conditions. Exact replicar of the method |
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Improving reliability of observations |
Behavioural categories fully operationalised and are measurable. If not then they can be open to interpretation |
