Measuring longitudinal cognition: Individual tests versus composites.

Jonaitis, E., R. Koscik, L. Clark, Y. Ma, T. Betthauser, S. Berman, S. Allison, K. Mueller, B. Hermann, H. Van, B. Christian, B. Bendlin, K. Blennow, H. Zetterberg, C. Carlsson, S. Asthana, and S. Johnson. “Measuring Longitudinal Cognition: Individual Tests Versus Composites.”. Alzheimer’s & Dementia (Amsterdam, Netherlands), Vol. 11, 2019, pp. 74-84.

Longitudinal cohort studies of cognitive aging must confront several sources of within-person variability in scores. In this article, we compare several neuropsychological measures in terms of longitudinal error variance and relationships with biomarker-assessed brain amyloidosis (Aβ).

DOI: 10.1016/j.dadm.2018.11.006

PubMed: 31673596