Adaptive measurement of cognitive function based on multidimensional item response theory.

ABSTRACT:

Introduction

Up to 20% of older adults in the United States have mild cognitive impairment (MCI), and about one-third of people with MCI are predicted to transition to Alzheimer's disease (AD) within 5 years. Standard cognitive assessments are long and require a trained technician to administer. We developed the first computerized adaptive test (CAT) based on multidimensional item response theory (MIRT) to more precisely, rapidly, and repeatedly assesses cognitive abilities across the adult lifespan. We present results for a prototype CAT (pCAT-COG) for assessment of global cognitive function.

Methods

We sampled items across five cognitive domains central to neuropsychological testing (episodic memory [EM], semantic memory/language [SM], working memory [WM], executive functi

SUBMITTER: Gibbons RD 

PROVIDER: S-EPMC11694520 | biostudies-literature | 2024 Oct-Dec

REPOSITORIES: biostudies-literature