Study Search Results Your query returned 3 results. Series results are grouped under the most relevant study. You can ungroup series results. Results per page: 25 50 100 Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. Most Downloaded (?) Study Title/Investigator 1. Hispanic Scholars Survey, 1973 (ICPSR 7925) Noboa, Abdin 2. Quality of American Life, 1971 (ICPSR 3508) Campbell, Angus; Converse, Philip E.; Rodgers, Willard L. 3. Quality of American Life, 1978 (ICPSR 7762) Campbell, Angus; Converse, Philip E.