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REACHING A VERDICT ­ Section 1

PERSUADING A JURY
1. Order of testimony
2. Persuasion
3. Inadmissible evidence

1. ORDER OF TESTIMONY
Murdoch - conducted a lab study using word lists to see the primacy effect ­ concluded prosecution had
unfair advantage as they give evidence first which is more…

Page 2

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Evaluation issues;
Ecological validity ­ not real courtroom, no interaction
Generalizability
Reliability
Usefulness
Confidentiality ­ real case, names used


2. PERSUASION

Kraus and Sales ­ found that the jury were relatively unmoved by hearing expert witnesses talk about
the reliability of eyewitness testimonies.

Persuasion Study

2 of 3
Cutler

Aim…

Page 3

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Evaluation issues;
Validity ­ more than one variable
Generalisability ­ only student, demand characteristics
Usefulness
Ecological validity ­ low, watched video, not real courtroom setting

3. INADMISSABLE EVIDENCE

If evidence is found inadmissible the judge will direct the jury to disregard what has been said.
However drawing attention to it…

Page 4

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Generalisability ­ only student, demand characteristics
Usefulness
Ecological validity ­ low, videotaped trial, not real courtroom setting

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