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Use and Effectiveness of Hypnosis and the Cognitive Interview for Enhancing Eyewitness Recall: Philadelphia, 1988-1989

Version
v1
Resource Type
Dataset : clinical data
Creator
  • Orne, Martin T.
  • Whitehouse, Wayne G.
Other Title
  • Version 1 (Subtitle)
Publication Date
1991-03-05
Funding Reference
  • United States Department of Justice. Office of Justice Programs. National Institute of Justice
Language
English
Free Keywords
cognitive functioning; cognitive processes; crime; eyewitness memory; hypnosis; police investigations
Description
  • Abstract

    This study investigated the effectiveness of hypnosis and the cognitive interview (a technique for stimulating memory) on the recall of events in a criminal incident. The data collected in the study address the following questions: (1) Does hypnosis or the cognitive interview mitigate recall deficits that result from emotionally upsetting events? (2) Does hypnosis or the cognitive interview improve recall when individuals recall events in narrative fashion? (3) Does hypnosis or the cognitive interview improve recall when individuals are required to respond to each item in a set of focused questions? (4) Does the cognitive interview improve recall better than motivated control recall procedures? For this two-stage study, subjects were randomly assigned to receive hypnosis, cognitive interview, or control treatment. Stage 1 involved completing unrelated questionnaires and viewing a short film containing an emotionally upsetting criminal event. Stage 2 was conducted 3 to 13 days later (the average was 6.5 days) and involved baseline information gathering about the events in the film, application of the assigned treatment, and post-treatment written recall of the events. Data were collected from the written narratives provided by subjects and from an oral forced recall of events in a post-experimental interview. Variables in File 1 include total information (correct, incorrect, confabulations, and attributions) as well as new information given in the post-treatment written narrative. The remaining variables in File 1 include score on Harvard Group Scale of Hypnotic Susceptibility, Form A (HGSHS:A), repressor status, and the number of days between viewing the film and completing the baseline and post-treatment interviews. Variables in File 2 were derived from the post-experimental oral forced recall interview and include total correct and incorrect responses and confidence ratings for correct and incorrect responses. The unit of observation is the individual.
  • Table of Contents

    Datasets:

    • DS0: Study-Level Files
    • DS1: Baseline and Treatment Data File
    • DS2: Post-Experimental Data File
    • DS3: Baseline and Treatment Data: SPSSX Export File
    • DS4: Post-Experimental Data: SPSSX Export File
Temporal Coverage
  • 1988-01 / 1989-06
    Time period: 1988-01--1989-06
  • 1988-01 / 1989-06
    Collection date: 1988-01--1989-06
Geographic Coverage
  • Pennsylvania
  • Philadelphia
  • United States
Sampled Universe
All university students in Philadelphia, Pennsylvania.
Collection Mode
  • The size of the samples used can result in moderate sampling errors. The use of a homogeneous sample of young adult volunteers makes it difficult to assess the generalizability of the findings to demographically dissimilar populations. The information contained in the data files is limited to the various measures derived from the baseline and post-treatment narratives and the post-experimental forced recall interview.

Note
2006-03-30 File CB9478.ALL.PDF was removed from any previous datasets and flagged as a study-level file, so that it will accompany all downloads. Funding insitution(s): United States Department of Justice. Office of Justice Programs. National Institute of Justice (87-IJ-CX-0052).
Availability
Download
This study is freely available to the general public via web download.
Alternative Identifiers
  • 9478 (Type: ICPSR Study Number)
Publications
  • Orne, M.T., Whitehouse, W.G., Orne, E.C., Dinges, D.F., Nadon, R.. Home Office Position on Forensic Hypnosis: Comments Based on the American Experience. British Journal of Experimental and Clinical Hypnosis..
  • Orne, Martin T.. The Use and Effectiveness of Hypnosis and the Cognitive Interview for Enhancing Eyewitness Recall. NCJ 123613, Washington, DC: United States Department of Justice, National Institute of Justice. .
    • ID: https://www.ncjrs.gov/pdffiles1/Digitization/123613NCJRS.pdf (URL)

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

Orne, Martin T.; Whitehouse, Wayne G. (1991): Use and Effectiveness of Hypnosis and the Cognitive Interview for Enhancing Eyewitness Recall: Philadelphia, 1988-1989. Version 1. Version: v1. ICPSR - Interuniversity Consortium for Political and Social Research. Dataset. https://doi.org/10.3886/ICPSR09478.v1