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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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Additional Information: Pointless or Necessary?

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Additional information pointless or necessary

Additional Information: Pointless or Necessary?

Grace Desjardins

Grade 9


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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