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Additional Information: Pointless or Necessary?. Grace Desjardins Grade 9. Problem . Will added information lead to a more accurate accusation of a criminal?. Research. Photo line-ups must contain 6 or more images Same size, color, etc.

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Presentation Transcript
problem
Problem
  • Will added information lead to a more accurate accusation of a criminal?
research
Research
  • Photo line-ups must contain 6 or more images
    • Same size, color, etc.
    • People must look similar, but only one can be involved in the crime
  • Looking at pictures from a photo line-up one by one can allow people to make more accurate judgments.
    • Must decide whether or not the photo is of the criminal each time
      • Don’t know what the next picture looks like
  • What is said before showing the line-up can affect the choices
    • Confidence level changes
    • Details can’t always be remembered exactly, so new images are formed.
hypothesis
Hypothesis
  • If a summary of information about the criminal is given to the people choosing the criminal, then the results of the accusations picked from the line-up will improve.
required materials
Required Materials
  • Camera (that can take both pictures and videos)
  • Computer
  • Summary of information about the “suspect”
  • Papers
    • Permission Slips
    • Voting Papers
  • Subjects Which Can Be Tested
    • 2 volunteers to participate in filming and preparing the summary
    • 2 classes of students to pick the “criminal” from the photo line-up
procedure
Procedure
  • A video was created of the “crime scene”.
  • A picture were taken of the “suspect”.
  • “Filler” pictures were created on a computer.
  • The “suspect” photo was shown to two volunteers.
  • The volunteers wrote a description of the “suspect”.
  • A short summary of the information collected was written.
  • One group of students was shown the video of the “crime scene”, which was followed by the photo line-up. The students were asked to pick the “suspect”.
    • Votes were written down.
  • The second group was shown the video and photo line-up after the summary was read to them twice. They were asked to pick the “suspect”.
    • Votes were written down.
  • The results were recorded and compared.
variables
Variables
  • Control
    • Group that was shown only the video and photo line-up
  • Independent
    • Group that heard the summary and was shown the video and photo line-up
  • Dependent
    • Accuracy of the votes
  • Constants
    • Video
    • Photo Line-up
      • Order of the pictures within the line-up
    • The day the experiment was performed
data comparisons

Data Comparisons

A Look at Correct vs. Incorrect

photo 1 vs photo 3
Photo 1 vs. Photo 3

Group 1

Group 2

Number of Votes Per Photo

Number of Votes Per Photo

photo 2 vs photo 3
Photo 2 vs. Photo 3

Group 1

Group 2

Number of Votes Per Photo

Number of Votes Per Photo

photo 4 vs photo 3
Photo 4 vs. Photo 3

Group 1

Group 2

Number of Votes Per Photo

Number of Votes Per Photo

photo 5 vs photo 3
Photo 5 vs. Photo 3

Group 1

Group 2

Number of Votes Per Photo

Number of Votes Per Photo

photo 6 vs photo 3
Photo 6 vs. Photo 3

Group 1

Group 2

Number of Votes Per Photo

Number of Votes Per Photo

undecided vs photo 3
Undecided vs. Photo 3

Group 1

Group 2

Number of Votes Per Photo

Number of Votes Per Photo

conclusion
Conclusion
  • Hypothesis: “If a summary of information about the criminal is given to the people choosing the criminal, then the results of the accusations picked from the line-up will improve.”
    • Not supported for the following possible reasons:
      • Looked for details vs. whole picture
      • Overwhelmed by number of details given
      • Perception of information differs from person to person
  • What Went Wrong, Improvements & Advancements:
    • Pictures should not be so similar
    • Create a longer video or shorter summary
    • No one should be given the option of “undecided” unless informed beforehand
acknowledgements
Acknowledgements
  • Sources:
    • Barker, Barry M. "Photo Line-Up." Becoming a Police Officer: An Insider\'s Guide for a Career in Law Enforcement. Web. Oct. 2010. <http://careerpoliceofficer.com/PoliceandVictims/photo_line-up.html>.
    • Dittmann, Melissa. "Psychological Sleuths--Accuracy and the Accused." American Psychological Association (APA). Web. Oct. 2010. <http://www.apa.org/monitor/julaug04/accuracy.aspx>.
    • EasyBib: Free Bibliography Maker - MLA, APA, Chicago Citation Styles. Web. 31 Oct. 2010. <http://easybib.com/>.
    • Malpass, Roy S. "A Lineup Evaluation "Do-It-Yourself Kit" for Attorneys and Law Enforcement." Web. Oct. 2010. <http://eyewitness.utep.edu/Documents/DIY%20Kit.pdf>.
    • Science Fair Project Ideas, Answers, & Tools. Web. Oct. 2010. <http://sciencebuddies.com>.
    • SpringerLink. Web. 31 Oct. 2010. <http://www.springerlink.com/content/n1574627h45021k2/>.
    • Steblay, Nancy, Jennifer Dysart, Solomon Fulero, and R.C.L. Lindsay. "Eyewitness Accuracy Rates in Sequential and Simultaneous Lineup Presentations: A Meta-Analytic Comparison." Law and Human Behavior 25.5 (2001). Web. Oct. 2010. <http://nysda.org/Hot_Topics/Eyewitness_Evidence/EyewitnessAccuracyRates.pdf>.
  • Thank you to everyone in attendance for listening to my presentation. I would love to answer any questions that you may have.
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