Fig. 2: The associations between mean performance and individual variability on nine ecological momentary cognitive tests in the older adult sample.

Regression lines are adjusted for age (centered), sex (reference: female), race/ethnicity (reference: non-Hispanic white), education (centered), average negative affect (centered), and smartphone type (reference: iOS). *significant after adjusting for multiple comparisons. Log-transformed IIV was utilized for 6-Word Version of Memory List, 12-Tile version of Memory Matrix, and all Color Trick model statistics.