Search Results Use the search box below to revise your search, or start a new search. Studies (3) Variables Publications Your query returned 2 studies. Series results are grouped under the most relevant study. Ungroup series results to view all results. Sort by: Study Relevance Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. Variable Relevance 1. National Survey of Midlife Development in the United States (MIDUS 3), 2013-2014 (ICPSR 36346) Ryff, Carol; Almeida, David; Ayanian, John; et al. 1 more result in Midlife Development in the United States (MIDUS) Series 2. Discourse Processing in Healthy Aging in the United States (ICPSR 36634) Harris Wright, Heather; Capilouto, Gilson J.