Also, I assign these as readings before class discussion (then ask them to find 
info on our own state and city practices which gets pretty interesting at 
times!)
New Jersey guidelines: http://www.state.nj.us/lps/dcj/agguide/photoid.pdf
New York guidelines: http://daasny.org/Line-up%20ID%20Procedures.pdf

And, I'm very happy to say that I provide the following link to my class in 
Forensic psychology:
A white paper from Gary Wells (et al) on lineups and photo-spreadsheets (source 
is Law and Human Behavior):
http://www.psychology.iastate.edu/~glwells/Wells_articles_pdf/whitepaperpdf.pdf 
or see:
http://www.jstor.org/stable/1394446
:)
Tim


From: Claudia Stanny [mailto:[email protected]]
Sent: Wednesday, September 22, 2010 12:57 PM
To: Teaching in the Psychological Sciences (TIPS)
Subject: Re: [tips] video of crime and line up



The problem of line-ups as forced-choice tests is one that Gary Wells and 
others have researched extensively.  Gary has some great data showing the false 
positive rates in the simultaneous lineup with an implied (or overt) "pick one" 
task versus sequential lineups, in which an unspecified number of potential 
choices are presented one at a time, with a "yes/no" response given immediately 
after each "suspect."  Others have looked at "none of the above" as a response 
option in the simultaneous lineup, two simultaneous lineups (perpetrator 
present/ perpetrator absent) in which the first choice is to select which 
lineup includes the perpetrator and then select one person from that lineup, 
and other procedures to minimize false positives.  In real police 
investigations there is a strong implication that the witness would not have 
been called in for a lineup ID unless the police believed they had their hands 
on the perpetrator, so giving "none of the above" as a potential response isn't 
as strong a deterrent to false positives as one would hope.  Realistically, the 
second procedure can only be used in research.  In a real investigation, police 
don't know who the perpetrator is and could easily create two 
perpetrator-absent lineups, although some false positives can be readily 
identified if the witness first selects the lineup constructed only from foils. 
 In real lineups, identifying false positives sometimes happens anyway because 
some of the foils may be staff at the station, off-duty officers, etc., who are 
known to not be the perpetrator.  Sequential lineups are so good at reducing 
the rate of false positives (but don't eliminate them), that the Department of 
Justice and police groups in the UK have been advocating adopting these 
practices.

The line-up procedure itself would be an interesting research topic for your 
student, although it would largely be a replication of existing work.
Claudia Stanny

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