Bringing Executive Function Testing Online: Assessment Validation Study.

Background: Executive function encompasses a set of higher-order cognitive processes, including planning, cognitive flexibility, and inhibitory control, that are essential for goal-directed behavior. These abilities are adversely affected by age, with executive dysfunction ultimately impairing the performance of activities of daily living.

Objective: This study aimed to assess the validity of a computerized cognitive assessment in predicting executive function performance in healthy older adults.

Methods: This retrospective analysis utilized baseline data from the Improving Neurological Health in Aging via Neuroplasticity-Based Computerized Exercise (INHANCE) trial. The study provides normative data for cognitively healthy older adults (aged 65 years and above) and evaluates the usability and validity of Freeze Frame, a cognitive assessment available on the BrainHQ platform. Performance on Freeze Frame was analyzed in relation to self-reported demographic variables and neuropsychological function, using a standardized measure of executive function, the National Institutes of Health Executive Abilities: Measures and Instruments for Neurobehavioral Evaluation and Research (NIH EXAMINER).

Results: The intent-to-treat analysis included 92 cognitively healthy older adults (mean age 71.9, SD 4.86, range: 65-83 years), of whom 66% (61/92) were female, with a mean education level of 16.45 (SD 3.40, range: 9-27) years. Performance on Freeze Frame was modestly associated with executive function scores on NIH EXAMINER (P=.02), accounting for 6.8% of the variance. The assessment showed a small but statistically significant relationship to age (ρ=-0.22, P=.046) and gender, with no significant influence of education. Psychometric evaluation supported its usability, with an average completion time of 4 (SD 0.16) minutes.

Conclusions: Freeze Frame is a brief, scalable, and accessible computerized cognitive assessment with demonstrated concurrent validity for executive function. Its efficiency and ease of administration across internet-connected devices suggests potential applications for cognitive screening. Future research should explore its utility in detecting executive dysfunction in clinical populations and its potential role in predicting functional performance across activities of daily living.