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Irwin A. Horowitz

Emeritus Professor

Irwin A. Horowitz, Ph.D.

Professor Emeritus
Department of Psychology
Oregon State University
Corvallis, OR 97331-5303
Email: ihorrowitz@oregonstate.edu

Background

  • He received his B.S. and M.A. degree from the Brooklyn College of the City University of New York, and a Ph.D. from Michigan State in 1966. He is currently Professor of Psychology at Oregon State University and help a position as Professor at University of Toledo, as well as a courtesy Professor of Law appointment at the University of Oregon College of Law.
  • Dr. Horowitz is a Fellow of both the American Psychological Association and the American Psychological Society.
  • He has co-authored four textbooks in Social Psychology and in Psychology and Law. He has published nearly 70 research articles in a variety of journals including Law and Human Behavior, Personality and Social Psychology, Journal of Personality and Social Psychology, Journal of Applied Psychology, Psychology, Public Policy and Law. For the past 18 years, Dr. Horowitz has received funding for his research on jury behavior from the National Science Foundation.
  • His current research areas of interest include the ability of jurors to process complex evidence in civil trials; the effectiveness of various jury-aid innovations that may increase the competence of the civil jury; and, the circumstances that provoke juries in criminal (and civil) trials to disobey the law (Jury Nullification). His work has been enhanced by the collaboration of various colleagues and friends including Ken Bordens, Marty Bourgeois, Lynne ForsterLee, Laird C. Kirkpatrick, Kristin Sommer, Norbert Kerr, Keith Neidermeier, Kip Williams.

Brief Vita

Recent Grants

  • National Science Foundation: Jury nullification: When and How Juries Disobey the Law. $275,000. Duration: August 2002 - June 2005. Co-Pl: Norbert L. Kerr.

Awards and Honors

Publications: Articles

  • Horowitz, I.A. (2008). Jury Nullification: An Empirical View. Northern Illiniois University Law Review.
  • Kerr, N.L., Boster, F.J., Callen, C.R., Braz, M.E., O'Brien, B., & Horowitz, I.A. (2008). Jury Nullification, Judicial Instructions, and the Chaos Effect. International Commentary on Evidence.
  • Horowitz, I.A., Kerr, N.L., Park, E.S., Gockel, C. (2006). Chaos in the Courtroom Reconsidered: Emotional Bias and Juror Nullification. Law and Behavior.
  • FosterLee, R., FosterLee, L., Horowitz, I.A., & King, E. (2006). The Effects of Defendant Race, Victim Race, and Juror Gender on Evidence Processing in a Murder Trial. Behavioral Sciences and the Law, 24, 177-198.
  • FosterLee, L. Kent, L., & Horowitz, I.A. (2005). The Cognitive Effects of Jury Aids on Decision-mking in Complex Civil Litigation. Applied Cognitive Psychology, 19, 7, 821-971.
  • ForsterLee, L. & Horowtiz, I. A. (2003). An Empirical Examination of The Effects of Jury-Aid Innovations on Juror Performance in Complex Civil Trials. Judicature, 86, 4, 184-191.
  • Bordens, K.S. & Horowitz, I.A. (2002). Social Psychology: Fundamentals Erlbaum.
  • Horowitz, I.A. & Bordens, K.S. (2002). The Effects of Jury Size, Evidence Complexity, and note Taking on Jury Process and Performance in a Civil Trial. Journal of Applied Psychology, 87, 1, 121-130.
  • Horowitz, I.A., Kerr, N. L. & Niedermeier, K.E. (2001). Jury Nullification: Legal and Psychological Perspectives. Brooklyn Law Review, 66, 4, 1207-1249.
  • Sommer, K., Horowitz, I.A., & Bourgeois, M. (2001). When juries fail to comply with the law: Biased evidence processing in individual and group decision making. Personality and Social Psychology Bulletin, 27, 3, 309-320.
  • Horowitz, I.A.,Bordens, K.S., Victor, E., Bourgeois, M.J., & ForsterLee, L. (2001) The Effects of Complexity on Jurors' Verdicts and Construction of the Evidence. Journal of Applied Psychology, 86, 4, 641-652.
  • Horowitz, I.A. & ForsterLee, L. (2001). The Effects of Notetaking and Trial Transcript Access on Mock Jury Decisions in a Complex Trial. Law and Human Behavior, 25, 4, 371-389.
  • Niedermeier, K.E., Horowitz, I.A., & Kerr, N.L. (2001). Exceptions to the rule: The effects of remorse, status, and gender on decision making. Journal of Applied Social Psychology, 31, 604-623.
  • Horowitz, I.A. & Bordens, K.S. (2000). The consolidation of Plaintiffs: The Effects of Number of Plaintiffs on Jurors' Liability Decisions, Damage Awards, and Cognitive Processing of Evidence, Journal of Applied Psychology.
  • ForsterLee, L., Horowitz, I.A., Victor, E. & Brown, N. (2000). The Bottom Line: The Effect of Written Expert Witness Statements on Juror Verdicts and Information Processing. Law and Human Behavior, 24, 2, 259-270.
  • Vidmar, N. et al... (Horowitz, I.A.) (2000). Amicus Brief: Kuhmho Tire v. Carmichael. In the Supreme Court of the United States October term 1998. Law and Human Behavior, 24, 4, 387-400.
  • FosterLee, R., Horowitz, I.A., Ho, R., FosterLee, L., & McGovern, A. (1999). Community Members' Perceptions of Evidence: The Effects of Gender in a Recovered Memory Civil Trial. Journal of Applied Psychology, 84, 4, 484-495.
  • Niedermeier, R., Horowitz, I.A., & Kerr, N.L. (1999). Informing Jurors of their Nullification Power: A Route to a Just Verdict or Judicial Chaos?Law and Human Behavior. 23, 3, 331 - 352.
  • FosterLee, L., & Horowitz, I.A. (1999). The Death Penalty in Australia. Australian Psychologist, 34, 1, 64 - 69.
  • Horowitz, I.A., Willging, T.E., & Bordens, K.S. (1998). Psychology of Law: Integrations and Applications. Allyn & Bacon: New York.
Publications: Books
  • Horowitz, I. A., & Bordens, K. S. (2008). Social Psychology (3rd Ed.). New York: McGraw-Hill.
  • Horowitz, I.A., Willging, T.E., & Bordens, K.S. (1998). Psychology of Law: Integrations and Applications. New York: Allyn & Bacon.