Performance on the Push-Turn-Taptap (PTT) task has been shown to be a strong predictor of concurrent everyday functioning. This study utilized a prospective, longitudinal design to evaluate the PTT task for predicting future performance on a behavioral assessment of everyday functioning. The PTT task was compared to other measures of executive functioning as well as general cognition in terms of administration time and ability to identify participants who evidenced functional decline. A total of 50 community-dwelling older adults (ages 58-87) completed the PTT task, Mattis Dementia Rating Scale, Geriatric Depression Scale, Behavioral Dyscontrol Scale, Delis-Kaplan Executive Function System, and Timed Instrumental Activities of Daily Living. Baseline PTT performance (a) was highly correlated with an objective measure of everyday functioning after approximately one year (r = -.497, p < .001), (b) was associated with changes in follow-up functioning, F(3, 46) = 3.15, p = .03, (c) was a better predictor of future functional status than a longer battery of EF, and (d) reliably identified individuals with the greatest magnitude of functional decline. The PTT tasks may provide a particularly advantageous method of predicting future changes in everyday functioning in older adults.
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