Validation of the CALLS Instrument for Cognitive Assessment in Older Adults
Author Information
Author(s): Valerie C. Crooks, Thomas D. Parsons, J. Galen Buckwalter
Primary Institution: Kaiser Permanente Southern California
Hypothesis
The study aimed to develop a psychometrically valid telephone-administered test of cognitive function in aging.
Conclusion
The CALLS test is a valid measure that provides a unique opportunity to reliably and efficiently study cognitive function in large populations.
Supporting Evidence
- The CALLS total score was significantly correlated with four neuropsychological assessment components.
- Older age and lower education were correlated with lower CALLS scores.
- Women scored better overall than men on the CALLS test.
- The CALLS showed a high internal consistency with a Cronbach's alpha of 0.81.
- The CALLS total score correlated moderately with the MMSE total score (r = 0.60).
- Principal component analysis revealed five components of cognitive function.
- The CALLS test is more efficient than traditional in-person neuropsychological evaluations.
Takeaway
The CALLS test is a quick and reliable way to check how well older people think and remember, using just a phone.
Methodology
The study involved a sequential hierarchical strategy for test development, including a 30-minute telephone assessment and a 2.5-hour in-person neuropsychological assessment.
Potential Biases
The sample may not be representative of individuals with lower education levels, which could affect the results.
Limitations
The CALLS battery lacks visuospatial tasks and may not be suitable for non-English speakers or those with severe visual deficits.
Participant Demographics
Participants were aged 65 and older, with an even distribution of men and women, and included diverse ethnic backgrounds.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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