Validity and reliability of a computerized cognitive function evaluation battery (CogEvo) as a screening tool.

Area of Science:

• Gerontology
• Neuroscience
• Psychometrics

Background:

• Early detection of cognitive decline is crucial for timely intervention in aging populations.
• Existing screening tools may have limitations in accessibility or scope.
• Computerized cognitive assessment offers a standardized approach to evaluating cognitive function.

Purpose of the Study:

• To determine the validity and reliability of CogEvo, a new computerized cognitive function evaluation battery.
• To assess CogEvo's efficacy as a screening tool for decreased cognitive function in community-dwelling elderly individuals.

Main Methods:

• 123 community-dwelling elderly participants (ages 57-97) completed five CogEvo tasks and two neuropsychological tests.
• Validity and reliability were assessed using factor analysis, MacDonald's omega, logistic regression, and ROC curve analysis.
• Exploratory and confirmatory factor analyses identified orientation/spatial and attention/executive function factors.

Main Results:

• Factor analysis revealed distinct orientation/spatial and attention/executive function factors within CogEvo.
• CogEvo subtasks demonstrated adequate internal consistency (MacDonald's omega ≥0.6).
• CogEvo scores significantly correlated with established neuropsychological tests, and ROC analysis showed moderate predictive performance for cognitive decline, particularly with the spatial function factor.

Conclusions:

• CogEvo is a valid and reliable tool for cognitive function screening.
• The battery effectively aids in the early identification of cognitive decline in elderly populations.
• The orientation/spatial cognitive function factor showed particular promise in identifying cognitive decline.