Measuring Cognitive Function In-Person and Remotely in Round 4 of the National Social Life, Health, and Aging Project (NSHAP).

Objectives: This paper describes the changes made to the collection of cognitive measures when the National Social Life, Health, and Aging Project (NSHAP) introduced remote modes of data collection.

Methods: In Round 4 (2021-23), the longitudinal study transitioned from being conducted in-person to collecting data via multiple modes including in-person and remote modes: web, phone, and paper-and-pencil. The team began with the measures used in Rounds 2 and 3 of NSHAP-the survey-adapted Montreal Cognitive Assessment (MoCA-SA)-and evaluated which measures could be administered remotely, introducing new measures for each cognitive subdomain, as needed, to compensate for items that could not be administered remotely.