Key Research: Hall and Player (2008)

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  • Created by: Rosa335
  • Created on: 10-12-16 12:19
Hall and Player - What has previous research into the collection and processing of forensic evidence suggested?
interpretation and analysis of fingerprints becomes more subjective as clarity decreases and as a consequence the expert is more vulnerable to external stimuli
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Hall and Player - What 2 questions did Hall en Player ask?
Does the written report of a crime, as routinely supplied with fingerprint evidence, affect a fingerprint expert's identification of a poor quality print? Are fingerprint experts emotionally affected by the circumstances of a case?
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Hall and Player - Name 3 characteristics of the sample
70 participants All volunteered All fingerprint experts worked for the Metropolitan Police Fingerprint Bureau
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Hall and Player - Name three controls used in the study
All were given a fingerprint magnifying glass and a Russell comparator Fourteen fingerprints were compared to ensure for consistency A fingerprint from a known source was used, from a volunteer whose right forefinger was inked an printed onto paper
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Hall and Player - What research method was used?
independent measures
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Hall and Player - What were the two condition
Low emotional context condition and High emotional context condition
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Hall and Player - Which crime was chosen for the low emotional context and why?
were given an examination report referring to an allegation of forgery. This was chosen as it is seen as a victimless crime and carries a relatively minor sentence.
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Hall and Player - Which crime was chosen for the high emotional context and why?
were given an examination report referring to an allegation of murder. This was chosen as there is a victim and it carried the most severe sentence.
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Hall and Player - What could they say about the fingerprint?
If they had a positive identification, not an identification, insufficient (not enough detail to compare), insufficient detail to establish identity (some detail but not enough to individualise)
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Hall and Player - At the end, what were the participants asked to do?
They were also asked if they had referred to the crime scene information, and if they had if it affected their analysis and if so, how.
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Hall and Player - How many people read the crime scene report?
57 out of 70
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Hall and Player - How many of these were in the High emotional context?
30
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Hall and Player - How many of these said it had influenced their decision? Compared to how many in the low emotional context?
52% of those 30 said it had influenced their condition, compared to 6% in the low-emotional condition.
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Hall and Player - What was the final result and how was it measured?
A chi-squared analysis od the data was conducted which revealed that no significant difference in outcome was observed between the two emotional contexts.
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Hall and Player - What is the conclusion of this study?
This study suggests that emotional context did not distract from the fingerprint experts' capacity to make a final decision.
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Other cards in this set

Card 2

Front

Hall and Player - What 2 questions did Hall en Player ask?

Back

Does the written report of a crime, as routinely supplied with fingerprint evidence, affect a fingerprint expert's identification of a poor quality print? Are fingerprint experts emotionally affected by the circumstances of a case?

Card 3

Front

Hall and Player - Name 3 characteristics of the sample

Back

Preview of the front of card 3

Card 4

Front

Hall and Player - Name three controls used in the study

Back

Preview of the front of card 4

Card 5

Front

Hall and Player - What research method was used?

Back

Preview of the front of card 5
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