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Test-retest reliability, practice effects and reliable change indices for the recognition memory test.
Chris M Bird1, Kyriaki Papadopoulou, Paola Ricciardelli
1Department of Neuropsychology, The National Hospital for Neurology and Neurosurgery Group, London, UK.
The British Journal of Clinical Psychology
|November 25, 2003
Summary
The Recognition Memory Test (RMT) has modest reliability, but using different versions minimizes practice effects. Large score changes are needed to confirm performance improvements or declines in this widely used memory test.
Area of Science:
- Neuroscience
- Psychology
- Cognitive Science
Background:
- The Recognition Memory Test (RMT) is a frequently utilized tool in memory assessment.
- Crucial psychometric properties, including reliability and temporal stability, were previously under-documented for the RMT.
Purpose of the Study:
- To establish the test-retest reliability of the RMT.
- To investigate practice effects associated with repeated RMT administration.
- To calculate Reliable Change (RC) indices for the RMT.
Main Methods:
- 206 healthy adults aged 40-70 participated.
- Participants completed the RMT twice with a 1-month interval.
- Two conditions were used: re-testing with the same RMT version or a different version.
Main Results:
- Test-retest reliability was found to be modest.
- Practice effects were eliminated when using different RMT versions.
- Practice effects were observed on the non-verbal subtest (same version) and the verbal subtest (same version, older adults).
- Reliable Change indices were substantial, irrespective of whether the same or different RMT versions were used.
Conclusions:
- The RMT's reliability is comparable to other common memory recall tests.
- Employing different RMT versions effectively mitigates practice effects.
- The RMT's recognition paradigm offers clinical utility.
- Significant score fluctuations are necessary to indicate genuine performance changes due to the large RC indices.