Measurement invariance of delta

 
   Lead Investigator:    Brandon Gavett
   Institution      :    University of Colorado
   E-Mail           :    bgavett@uccs.edu
   Proposal ID      :    577


   Publications:


1  Saurman J, John S, Gurnani A, Bussell C, Grajzel K, Griffin JW, Gavett BE
   Measurement Invariance of Dementia Severity in (^{unicode 03b4})
   2016   Abstract  J Int Neuropsychol Soc   22(s1)   , 

   PUBLISHED





   Proposal Description:
   Royall and colleagues have identified the latent variable delta as a measure of   dementia severity that has been supported in numerous samples and using various   cognitive tests as indicators. However, a formal study of its measurement         invariance has not been explored. This is an important step needed to ensure      that delta measures dementia severity similarly across groups and across time.    We propose to study the measurement invariance of delta across diagnostic         groups (healthy controls, MCI, and dementia due to Alzheimer's disease,           vascular dementia, frontotemporal dementia, and Lewy Body disease) and across     time. This project will test the hypothesis that delta is invariant to clinical   group and to time, which, if supported, will enhance the clinical utility of      delta as a longitudinal measure of dementia severity, regardless of suspected     pathology.