Scientific Processes (AQA A-Level Psychology): Flashcards
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Practise the cards
10 cards from this deck
Definition of reliability
Definition of reliability
Consistency of findings from research or measuring instruments
Test-retest reliability
Test-retest reliability
Whether a test produces consistent results over time
Test-retest reliability threshold
Test-retest reliability threshold
Correlation of +0.80 or higher indicates good reliability
Inter-observer reliability
Inter-observer reliability
Extent of agreement between two or more observers
Inter-observer reliability threshold
Inter-observer reliability threshold
Agreement rate above +0.80 shows high reliability
Internal reliability
Internal reliability
Items within a test are consistent with each other
Improving questionnaire reliability
Improving questionnaire reliability
Use closed, fixed-choice questions to reduce ambiguity
Improving interview reliability
Improving interview reliability
Use same interviewer or structured interviews with fixed questions
Why are lab experiments reliable?
Why are lab experiments reliable?
Strict control allows precise replication of methods
Operationalising behavioural categories
Operationalising behavioural categories
Make them measurable, non-overlapping, and comprehensive