Persuading a Jury

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KeyStudy1:Cutler et al-The effects of the expert witness on jury perception.

Aim:Whether expert testomony effects jurors decisions.


  • 538 undergraduates
  • Viewed a videotape of a mock trail robbery
  • Afterwards they completed a questionaire containing the dependent measures which were:

their verdict , a memory test , rating scales of how confident they were in their verdict.

There were 4 independent variables:

1.Witness identifying conditions , these were either:

GOOD-no disguise , a hidden gun, a 2-day delay in identification and no leading questions.

BAD-robber disguised,handgun,14-delay and suggestive instructions during the line up.

2.Witness confidence- the witness…


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