Study Search Results Your query returned 1 results. Series results are grouped under the most relevant study. You can ungroup series results. Results per page: 25 50 100 Sort by: Study Relevance Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. Most Downloaded Variable Relevance (?) Study Title/Investigator 1. Midlife Development in the United States (MIDUS II): Milwaukee African American Sample, 2005-2006 (ICPSR 22840) Ryff, Carol; Almeida, David; Ayanian, John S.; et al.