Cognitive intraindividual variability dispersion

1. Cognitive frailty increases cognitive intraindividual variability dispersion in humans.

   “Compared to non‐CF, CF exhibited greater IIV‐dispersion ( p = 0.038)”

   Humansin cognitively frail older adults compared to non-cognitively frail

   Brain connectivity moderating the association cognitive intraindividual variability and mobility in the cognitively frail older adults

   AAIC 2025 abstract·23 Dec 2025

More on Cognitive frailty

1. time is associated with cognitive intraindividual variability dispersion in humans (ds < .06).

   “The mean-level change effect sizes for ISD and CoV scores were very small (ds < .06)”

   Humanscognitively unimpaired424.99 daysn = 2,224

   Reliability and stability of cognitive intraindividual variability indices among cognitively unimpaired older adults

   The Clinical neuropsychologist·13 Sep 2025