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Multnomah County [Oregon] Jury Project, 1973-1976

Resource Type
Dataset : administrative records data, and survey data
  • Grofman, Bernard
Other Title
  • Archival Version (Subtitle)
Publication Date
Funding Reference
  • National Science Foundation. Law and Social Sciences Program
Free Keywords
convictions (law); courts; criminal justice system; demographic characteristics; judicial decisions; juries; jury deliberations; justice; sentencing; verdicts
  • Abstract

    The Multnomah County, Oregon, Jury Project was conducted as part of the Modeling Jury Decision Project funded by the National Science Foundation. These data represent a census of 32 jury panels that served from July 1973 through March 1976 in the Fourth Circuit Court in Multnomah County (Portland), Oregon. Information was obtained for both six-member and twelve-member juries. Data were collected from official court records, monthly juror panel summaries, and self-administered juror demographic data sheets. Information collected includes members of the jury, their votes, the final verdict, the type of case, the name of the judge, and the amount of time taken by the jury to arrive at a decision, as well as each juror's age, occupation, years of residence in Oregon, educational background, family information, and information on past juries and trials they were involved in. The data include both individual-level juror and aggregate jury case data, with information on 6,657 jurors and 1,159 trials.
  • Table of Contents


    • DS1: Dataset
Temporal Coverage
  • 1973-07 / 1976-03
    Time period: 1973-07--1976-03
  • 1975 / 1976
    Collection date: 1975--1976
Geographic Coverage
  • Oregon
  • Portland (Oregon)
  • United States
Sampled Universe
All jury panels in Multnomah County, Oregon, from July 1973 to March 1976.
Collection Mode
  • Although there is information for 6,657 jurors, there are actually a total of 6,892 cases in the data file. The extra 235 cases are dummy cases. Users should see variable 9, CASEFILT, located in column 23 for an explanation regarding these dummy cases.

Funding insitution(s): National Science Foundation. Law and Social Sciences Program (SOC 75-14091 and SOC 77-24702).
This version of the study is no longer available on the web. If you need to acquire this version of the data, you have to contact ICPSR User Support (
Alternative Identifiers
  • 9030 (Type: ICPSR Study Number)
  • Is previous version of
    DOI: 10.3886/ICPSR09030.v1
  • Grofman, Bernard. Jury decision making models and the Supreme Court: The jury cases from Williams v. Florida to Ballew v. Georgia. Policy Studies Journal.84, (5), 749-772.1980.
    • ID: 10.1111/j.1541-0072.1980.tb01278.x (DOI)
  • Grofman, Bernard N.. A pilot study of individual behavior as mediated by the group context: Three- and five-member mock juries. Experimental Study of Politics.7, 41-54.1979.
  • Grofman, Bernard. Judgemental competence of individuals and groups in a dichotomous choice situation: Is a maority of heads better than one?. Journal of Mathematical Sociology.61, (1), 47-60.1978.
    • ID: 10.1080/0022250X.1978.9989880 (DOI)
  • Grofman, Bernard. Jury decision-making models. Modeling the Criminal Justice System.Beverly Hills: Sage. 1977.
  • Grofman, Bernard. Not necesarily twelve and not necessarily unanimous: Evaluating the impact of Williams v. Florida and Johnson v. Louisiana. Psychology and the Law: Research Frontiers.Lexington, MA: Lexington Books. 1976.
  • Grofman, Bernard, Feld, Scott. A note on clique avoidance in repeated jury selection from among a fixed pool of jurors: Comparisons of manpower savings in six- and twelve-member juries. Public Choice.26, (26), 145-150.1976.
    • ID: 10.1007/BF01725804 (DOI)

Update Metadata: 2015-08-05 | Issue Number: 6 | Registration Date: 2015-06-15

Grofman, Bernard (1984): Multnomah County [Oregon] Jury Project, 1973-1976. Archival Version. Version: v0. ICPSR - Interuniversity Consortium for Political and Social Research. Dataset.