This study examined the utility of response time on online surveys for discriminating respondents’ cognitive health. Specifically, it used response time from 1053 items across 37 online surveys administered over 6.5 years and cognitive health measured at the end of this time in a multilevel location-scale model. Average response time as well as fluctuations in response time were associated with subsequent cognitive health. This suggests that response time on survey items may be a potential indicator of cognitive impairment.
