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Bridging the gap between performance-based assessment and self-reported everyday functioning: An ecological momentary
Maureen Schmitter-Edgecombe1, Catherine Sumida1, Diane J Cook2
1Department of Psychology, Washington State University, Pullman, WA, USA.
The Clinical Neuropsychologist
|March 20, 2020
Summary
Intra-individual variability (IIV) in cognitive tasks, measured in daily life, predicts self-reported functional status and cognitive failures in older adults. This real-world cognitive fluctuation is not captured by standard performance tests.
Area of Science:
- Gerontology
- Cognitive Neuroscience
- Psychology
Background:
- Real-world cognitive function is influenced by dynamic, state-dependent factors like fatigue and distractions.
- Traditional cognitive assessments may not fully capture an individual's fluctuating daily cognitive capacity.
Purpose of the Study:
- To investigate the relationship between cognitive variability in daily life and functional status in older adults.
- To examine if intra-individual variability (IIV) in cognitive performance predicts self-reported and objective functional status.
Main Methods:
- Ecological momentary assessment (EMA) and a n-back task were used with 35 community-dwelling older adults.
- Participants completed EMA n-back tasks and surveys four times daily for one week.
- Measures included average EMA n-back performance and intra-individual variability (IIV).
Main Results:
- IIV was weakly correlated with average EMA n-back performance.
- IIV significantly predicted self-reported functional status and cognitive failures.
- IIV did not significantly predict objective, performance-based functional status measures.
Conclusions:
- Cognitive variability measured in real-world settings may better reflect daily functional capacity than optimal performance tests.
- Self-report measures and IIV capture fluctuating cognitive abilities relevant to everyday functioning.
Keywords:
Activities of daily livingcognitive controlecological momentary assessmentexecutive functionintra-individual variabilityMore Related Videos
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