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Testing the Effects of Selected Jury Trial Innovations on Juries' Comprehension of DNA Evidence in New Castle County, Delaware, 2003

Metadata Updated: November 28, 2023

This study tested whether the use of selected jury trial reforms enhanced jurors' understanding of complex and challenging scientific evidence presented during a criminal trial. The study examined the use of several jury reform techniques using a controlled mock jury approach in which mock juries composed of jury pool members watched a videotaped armed robbery trial featuring conflicting expert testimony about mitochondrial DNA (mtDNA) evidence. A total of 480 mock jurors were randomly assigned to eight-person juries and to one of the six conditions in the experiment. Ten mock juries were run in each of the six conditions (No Innovations, Note Taking, Question Asking and Note Taking, DNA Checklist and Note Taking, Jury Notebook and Note Taking, and All Innovations). At various points throughout the study (before the trial, after watching the videotaped trial, and after reaching a verdict), mock jurors were asked to complete questionnaires to gauge their understanding of mtDNA and the mtDNA evidence presented during the trial. They were also asked if and how the use of the jury trial innovations helped in their understanding of the mtDNA evidence. Specific variables contained in the study include demographic variables of the mock jurors, including their math and science background, mock jurors' views of science, their understanding of mtDNA, their perceptions of the reliability of different types of evidence, and the credibility of the prosecutor, defense attorney, detective, eyewitness, defendant, and expert witnesses, and whether the mock jurors favor or oppose the various innovations.

Access & Use Information

Public: This dataset is intended for public access and use. License: us-pd

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Dates

Metadata Created Date August 18, 2021
Metadata Updated Date November 28, 2023

Metadata Source

Harvested from DOJ JSON

Additional Metadata

Resource Type Dataset
Metadata Created Date August 18, 2021
Metadata Updated Date November 28, 2023
Publisher National Institute of Justice
Maintainer
Identifier 3426
Data First Published 2006-01-06T00:00:00
Language eng
Data Last Modified 2006-01-06T00:00:00
Public Access Level public
Bureau Code 011:21
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://www.justice.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 9ae4dc01-43da-414f-88c9-7dd324ac4069
Harvest Source Id 3290e90a-116f-42fc-86ac-e65521ef3b68
Harvest Source Title DOJ JSON
License http://www.usa.gov/publicdomain/label/1.0/
Program Code 011:060
Publisher Hierarchy Office of Justice Programs > National Institute of Justice
Source Datajson Identifier True
Source Hash 5d83d4aec196279402f02727625c2715f6586678690361babb55a2c876d9acd7
Source Schema Version 1.1

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