Examining the reliability of ADAS-Cog change scores.

  title={Examining the reliability of ADAS-Cog change scores.},
  author={Joseph H Grochowalski and Ying Liu and Karen L. Siedlecki},
  journal={Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition},
  volume={23 5},
The purpose of this study was to estimate and examine ways to improve the reliability of change scores on the Alzheimer's Disease Assessment Scale, Cognitive Subtest (ADAS-Cog). The sample, provided by the Alzheimer's Disease Neuroimaging Initiative, included individuals with Alzheimer's disease (AD) (n = 153) and individuals with mild cognitive impairment (MCI) (n = 352). All participants were administered the ADAS-Cog at baseline and 1 year, and change scores were calculated as the difference… CONTINUE READING