Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Keyword
-
- Expert testimony (6)
- Jury reforms (6)
- Civil trials (5)
- Scientific evidence (5)
- Empirical legal studies (4)
-
- Juries (4)
- Jury decision making (4)
- Jury trial innovations (4)
- Mitochondrial DNA (4)
- Jury comprehension (3)
- Jury deliberation (3)
- Evidence (2)
- Jury MtDNA Study (2)
- MtDNA (2)
- Arizona jury reform (1)
- Arizona jury reforms (1)
- Canada Evidence Act Section 12 (1)
- Connective-tissue injuries (1)
- Criminal Law and Procedure (1)
- Criminal Record (1)
- DNA (1)
- DNA evidence (1)
- Expert credibility (1)
- Expert witnesses (1)
- Hung juries (1)
- Judge MtDNA Study (1)
- Juries and science (1)
- Juror comprehension (1)
- Juror decision making (1)
- Juror discussions reform (1)
Articles 1 - 17 of 17
Full-Text Articles in Evidence
"Speaking Rights": Evaluating Juror Discussions During Civil Trials, Paula Hannaford-Agor, Valerie P. Hans, G. Thomas Munsterman
"Speaking Rights": Evaluating Juror Discussions During Civil Trials, Paula Hannaford-Agor, Valerie P. Hans, G. Thomas Munsterman
Valerie P. Hans
Permitting jurors to discuss evidence during civil trials may facilitate understanding and provide an outlet for their thoughts and questions, and does not appear to lead to prejudgment or prejudice.
Jurors' Evaluations Of Expert Testimony: Judging The Messenger And The Message, Sanja Kutnjak Ivkovic, Valerie P. Hans
Jurors' Evaluations Of Expert Testimony: Judging The Messenger And The Message, Sanja Kutnjak Ivkovic, Valerie P. Hans
Valerie P. Hans
Jurors are laypersons with no specific expert knowledge, yet they are routinely placed in situations in which they need to critically evaluate complex expert testimony. This paper examines jurors' reactions to experts who testify in civil trials and the factors jurors identify as important to expert credibility. Based on in-depth qualitative analysis of interviews with 55 jurors in 7 civil trials, we develop a comprehensive model of the key factors jurors incorporate into the process of evaluating expert witnesses and their testimony. Contrary to the frequent criticism that jurors primarily evaluate expert evidence in terms of its subjective characteristics, the …
Section 12 Of The Canada Evidence Act And The Deliberations Of Simulated Juries, Valerie P. Hans, Anthony N. Doob
Section 12 Of The Canada Evidence Act And The Deliberations Of Simulated Juries, Valerie P. Hans, Anthony N. Doob
Valerie P. Hans
In the past, there have been three major approaches to the experimental investigation of the jury. First, juror selection research involves the study of the relation between verdicts or leniency toward certain classes of defendants and the characteristics of potential jurors. The second class of research is group study, in which the amount and style of individual participation is observed within the context of simulated jury deliberations (e.g., Strodtbeck, James and Hawkins, 1957). Finally, experimental psychology has made another contribution to the study of the jury; numerous researchers have conducted experimental studies employing legal stimulus materials. Typically, in such a …
Science On Trial, Valerie P. Hans
Science On Trial, Valerie P. Hans
Valerie P. Hans
The increasing complexity of both criminal and civil jury trials raises a host of issues for lawyers and judges. For the litigator, the first question is whether a jury can be trusted with a case that turns on highly technical evidence. For the trial judge, there are decisions about the admissibility of expert testimony, whether it is based on sound science, and whether a jury is likely to be misled by scientific claims. Should the judge permit jury innovations such as note taking, question asking, and juror discussions of evidence during the trial, hoping to increase jury comprehension of the …
Can Jury Trial Innovations Improve Juror Understanding Of Dna Evidence?, B. Michael Dann, Valerie P. Hans, David H. Kaye
Can Jury Trial Innovations Improve Juror Understanding Of Dna Evidence?, B. Michael Dann, Valerie P. Hans, David H. Kaye
Valerie P. Hans
A single spot of blood on a pink windowsill will tell investigators who broke a windowpane, turned a lock, and kidnapped 2-year-old Molly Evans from her bedroom in the middle of the night. An expert witness will testify that the DNA profile of the blood evidence recovered from the windowsill was entered into CODIS, an electronic database of DNA profiles. That process yielded a “hit,” identifying the defendant as the most likely source of the blood inside Molly’s room. But will jurors be able to understand the expert’s intricate analysis and use it to reach a verdict? And what—if any—steps …
The Arizona Jury Reform Permitting Civil Jury Trial Discussions: The View Of Trial Participants, Judges, And Jurors, Valerie P. Hans, Paula Hannaford-Agor, G. Thomas Munsterman
The Arizona Jury Reform Permitting Civil Jury Trial Discussions: The View Of Trial Participants, Judges, And Jurors, Valerie P. Hans, Paula Hannaford-Agor, G. Thomas Munsterman
Valerie P. Hans
In 1995, the Arizona Supreme Court reformed the jury trial process by allowing civil jurors to discuss the evidence presented during trial prior to their formal deliberations. This Article examines the theoretical, legal, and policy issues raised by this reform and presents the early results of a field experiment that tested the impact of trial discussions. Jurors, judges, attorneys, and litigants in civil jury trials in Arizona were questioned regarding their observations, experiences, and reactions during trial as well as what they perceived to be the benefits and drawback of juror discussions. The data revealed that the majority of judges …
Testing Jury Reforms, Valerie P. Hans, B. Michael Dann, David H. Kaye, Erin J. Farley, Stephanie Albertson
Testing Jury Reforms, Valerie P. Hans, B. Michael Dann, David H. Kaye, Erin J. Farley, Stephanie Albertson
Valerie P. Hans
DNA evidence has become a key law enforcement tool and is increasingly presented in criminal trials in Delaware and elsewhere. The integrity of the criminal trial process turns upon the jury's ability to understand DNA evidence and to evaluate properly the testimony of experts. How well do they do? Can we assist them in the process?
How Much Justice Hangs In The Balance? A New Look At Hung Jury Rates, Paula Hannaford-Agor, Valerie P. Hans, G. Thomas Munsterman
How Much Justice Hangs In The Balance? A New Look At Hung Jury Rates, Paula Hannaford-Agor, Valerie P. Hans, G. Thomas Munsterman
Valerie P. Hans
Reports of apparent increases in the number of hung juries in some jurisdictions have caused concern among policy makers. A 1995 report by the California District Attorneys Association cited hung jury rates in 1994 that exceeded 15 percent in some jurisdictions (the rates varied from 3 to 23 percent across the nine counties for which data were available). In 1996, the District of Columbia Superior Court reported a higher-than-expected hung jury rate of 11 percent. Why juries hang at these rates isn't clear, but some commentators have claimed that hung juries are the product of eccentric or nullifying holdout jurors …
The Timing Of Opinion Formation By Jurors In Civil Cases: An Empirical Examination, Paula Hannaford-Agor, Valerie P. Hans, Nicole L. Mott, G. Thomas Munsterman
The Timing Of Opinion Formation By Jurors In Civil Cases: An Empirical Examination, Paula Hannaford-Agor, Valerie P. Hans, Nicole L. Mott, G. Thomas Munsterman
Valerie P. Hans
The question of when and how jurors form opinions about evidence presented at trial has been the focus of seemingly endless speculation. For lawyers, the question is how to capture the attention and approval of the jury at the earliest possible point in the trial. Their goal is to maximize the persuasiveness of their arguments--or at least to minimize the persuasiveness of those of the opposing side. Judges, in contrast, are more concerned about prejudgment. They regularly admonish jurors to suspend judgment until after all the evidence has been presented and after the jurors have been instructed on the law. …
Statistics In The Jury Box: How Jurors Respond To Mitochondrial Dna Match Probabilities, David H. Kaye, Valerie P. Hans, B. Michael Dann, Erin J. Farley, Stephanie Albertson
Statistics In The Jury Box: How Jurors Respond To Mitochondrial Dna Match Probabilities, David H. Kaye, Valerie P. Hans, B. Michael Dann, Erin J. Farley, Stephanie Albertson
Valerie P. Hans
This article describes parts of an unusually realistic experiment on the comprehension of expert testimony on mitochondrial DNA (mtDNA) sequencing in a criminal trial for robbery. Specifically, we examine how jurors who responded to summonses for jury duty evaluated portions of videotaped testimony involving probabilities and statistics. Although some jurors showed susceptibility to classic fallacies in interpreting conditional probabilities, the jurors as a whole were not overwhelmed by a 99.98% exclusion probability that the prosecution presented. Cognitive errors favoring the defense were more prevalent than ones favoring the prosecution. These findings lend scant support to the legal argument that mtDNA …
Judges, Juries, And Scientific Evidence, Valerie P. Hans
Judges, Juries, And Scientific Evidence, Valerie P. Hans
Valerie P. Hans
The rise in scientific evidence offered in American jury trials, along with court rulings thrusting judges into the business of assessing the soundness of scientific evidence, have produced challenges for judge and jury alike. Many judges have taken up the duty of becoming “amateur scientists.” But what about juries? Surely they too could benefit from assistance as they attempt to master and apply complex testimony about scientific matters during the course of a trial. Concerns about the jury’s ability to understand, critically evaluate, and employ scientific evidence in deciding complex trials have led to many suggestions for reform. This article …
Permitting Jury Discussions During Trial: Impact Of The Arizona Reform, Paula Hannaford-Agor, Valerie P. Hans, G. Thomas Munsterman
Permitting Jury Discussions During Trial: Impact Of The Arizona Reform, Paula Hannaford-Agor, Valerie P. Hans, G. Thomas Munsterman
Valerie P. Hans
A field experiment tested the effect of an Arizona civil jury reform that allows jurors to discuss evidence among themselves during the trial. Judges, jurors, attorneys, and litigants completed questionnaires in trials randomly assigned to either a Trial Discussions condition, in which jurors were permitted to discuss the evidence during trial, or a No Discussions condition, in which jurors were prohibited from discussing evidence during trial according to traditional admonitions. Judicial agreement with jury verdicts did not differ between conditions. Permitting jurors to discuss the evidence did affect the degree of certainty that jurors reported about their preferences at the …
After The Crash: Citizens' Perceptions Of Connective-Tissue Injury Lawsuits, Valerie P. Hans, Nicole Vadino
After The Crash: Citizens' Perceptions Of Connective-Tissue Injury Lawsuits, Valerie P. Hans, Nicole Vadino
Valerie P. Hans
Even though automobile accident cases comprise a substantial portion of the state jury trial caseload, the humble automobile case has attracted minimal scholarly attention. However, many members of the public believe that whiplash, a connective-tissue or soft-tissue injury from auto accidents, is oftentimes fraudulent. To explore public perceptions, a national survey included a scenario experiment that varied types of minor injuries from an automobile accident. As predicted, the plaintiff who experienced a bone fracture was seen as more likely to be suffering a real injury than a plaintiff who reported suffering from a connective-tissue injury. The fracture was also viewed …
Taking A Stand On Taking The Stand: The Effect Of A Prior Criminal Record On The Decision To Testify And On Trial Outcomes, Theodore Eisenberg, Valerie P. Hans
Taking A Stand On Taking The Stand: The Effect Of A Prior Criminal Record On The Decision To Testify And On Trial Outcomes, Theodore Eisenberg, Valerie P. Hans
Valerie P. Hans
This article uses unique data from over 300 criminal trials in four large counties to study the relations between the existence of a prior criminal record and defendants testifying at trial, between testifying at trial and juries' learning about a criminal record, and between juries' learning about a criminal record and their decisions to convict or acquit. Sixty percent of defendants without criminal records testified compared to 45 percent with criminal records. For testifying defendants with criminal records, juries learned of those records in about half the cases. Juries rarely learned about criminal records unless defendants testified. After controlling for …
The Predictability Of Juries, Valerie P. Hans, Theodore Eisenberg
The Predictability Of Juries, Valerie P. Hans, Theodore Eisenberg
Valerie P. Hans
This article discusses the meaning of jury “predictability” and whether jury research supports claims of unpredictability. It then analyzes the factors that are associated with perceptions of civil jury unpredictability using data from (1) surveys of corporate and insurance attorneys’ views of the civil justice system, and (2) the outcomes of civil jury trials in state courts. Perceptions of punitive damages dominate business and insurance industry attorneys’ jury predictability ratings. Punitive damages data are significantly and strongly related to attorneys’ judgments about jury predictability across states. This strong association occurs despite evidence of infrequent punitive damage award requests and less …
Science In The Jury Box: Jurors' Views And Understanding Of Mitochondrial Dna Evidence, Valerie P. Hans, David H. Kaye, B. Michael Dann, Erin J. Farley, Stephanie Albertson
Science In The Jury Box: Jurors' Views And Understanding Of Mitochondrial Dna Evidence, Valerie P. Hans, David H. Kaye, B. Michael Dann, Erin J. Farley, Stephanie Albertson
Valerie P. Hans
This article describes parts of an unusually realistic experiment on the comprehension of expert testimony on mitochondrial DNA (mtDNA) sequencing in a criminal trial for robbery. Specifically, we examine how jurors who responded to summonses for jury duty evaluated portions of videotaped testimony involving probabilities and statistics. Although some jurors showed susceptibility to classic fallacies in interpreting conditional probabilities, the jurors as a whole were not overwhelmed by a 99.98% exclusion probability that the prosecution presented. Cognitive errors favoring the defense were more prevalent than ones favoring the prosecution. These findings lend scant support to the legal argument that mtDNA …
The Relation Between Punitive And Compensatory Awards: Combining Extreme Data With The Mass Of Awards, Theodore Eisenberg, Valerie P. Hans, Martin T. Wells
The Relation Between Punitive And Compensatory Awards: Combining Extreme Data With The Mass Of Awards, Theodore Eisenberg, Valerie P. Hans, Martin T. Wells
Valerie P. Hans
This article assesses the relation between punitive and compensatory damages by combining two data sets of extreme awards with state court data from the National Center for State Courts (NCSC) for 1992, 1996, and 2001. One data set of extreme awards consists of punitive damages awards in excess of $100 million from 1985 through 2003, gathered by Hersch and Viscusi (H-V); the other includes the National Law Journal's (NLJ) annual reports of the 100 largest trial verdicts from 2001 to 2004. The integration of these data sets provides the most comprehensive picture of punitive damages in American civil trials to …