Rebecca Treiman, Kevin Mulqueeny, Brett Kessler
Young children's knowledge about the spatial layout of writing
Writing systems research
english longitudinal study ageing elsa panel study representative cohort men women living england aged 50 years designed sister study health retirement study usa multidisciplinary orientation involving collection economic social psychological cognitive health biological genetic data study commenced 2002 sample followed every 2 years data collected using computerassisted personal interviews selfcompletion questionnaires additional nurse visits assessment biomarkers every 4 years original sample consisted 11 391 members ranging age 50 100 years elsa harmonized ageing studies countries facilitate international comparisons linked financial health registry data data set openly available researchers analysts soon collection httpwwwesdsacuklongitudinalaccesselsal5050asp