Reliability & Validity (OCR A-Level Psychology): Flashcards
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Practise the cards
14 cards from this deck
Reliability definition
Reliability definition
Measure of consistency; repeatable with same findings each time
Test-retest method
Test-retest method
Testing same person twice on separate occasions; should produce similar results
Test-retest reliability threshold
Test-retest reliability threshold
Correlation coefficient >+0.8
Inter-observer reliability
Inter-observer reliability
Extent 2+ observers agree on same results
Inter-observer correlation threshold
Inter-observer correlation threshold
Correlation of +0.8 or more
Most reliable experiment type
Most reliable experiment type
Lab experiments - strict control of all aspects
Validity definition
Validity definition
Extent observed effect is genuine & measures what intended
Internal validity
Internal validity
Whether effects due to IV and not other factors
External validity
External validity
Generalising findings beyond research settings
Ecological validity
Ecological validity
Generalising findings to everyday life
Temporal validity
Temporal validity
Generalising findings to other historical times/eras
Face validity
Face validity
Whether measure appears to measure what it should
Concurrent validity
Concurrent validity
Results match those of well-established test
Single/double-blind procedures purpose
Single/double-blind procedures purpose
Reduce effect of demand characteristics