https://orcid.org/0000-0003-0917-3859
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Abstract
Purpose
This study aimed to compare the test-retest reliability and minimal detectable change (MDC) of the Mini-Mental State Examination (MMSE), the Short Portable Mental Status Questionnaire (SPMSQ), the Montreal Cognitive Assessment (MoCA), and the Saint Louis University Status Examination (SLUMS) in a single sample of people with dementia.
Methods
Sixty people with dementia were assessed twice two weeks apart, and the test-retest reliability was examined using the intraclass correlation coefficient (ICC) for four screening tools. The MDC95 value was calculated based on the standard error of measurement to estimate the random measurement error.
Results
The ICC values for screening tools were 0.86–0.90. The MDC95 values (MDC95%) were 5.0 (17.2%), 2.74 (27%), 4.71(20%), and 6.26 (24%) for the MMSE, SPMSQ, MoCA, and SLUMS, respectively.
Conclusions
Overall, the four screening tools were similar in test-retest reliability which imply that the MMSE, MoCA, SPMSQ, and SLUMS were reliable in monitoring cognitive function in people with dementia. The results of the direct comparisons of test-retest reliability of the four screening tools provide useful information for both clinicians and researchers to select an appropriate cognitive screening tool.
The MMSE, MoCA, SPMSQ, and SLUMS are equally reliable and thus they could be used to monitor the cognitive function in people with dementia.
The MDC values are useful in determining whether a real change has occurred between repeated assessments for people with dementia.
Implications for Rehabilitation
Acknowledgments
We would like to thank the participants for their work during data collection.
Disclosure statement
The authors declare no conflict of interest.