Bradbury and Williams (2013)

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Year of study
2013
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Aim
To examine whether racial make-up of a jury affects its decision making.
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Hypothesis 1
Black defendants will be more likely to be convicted by juries composed of a higher number of white jurors
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Hypothesis 2
Black defendants will be more likely to be convicted by juries composed of a higher number of Hispanic jurors
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IV
The racial make-up of the jury; mostly black, mostly white & mostly Hispanic
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DV
Whether or not a trial resulted in a conviction
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What data was collected?
from real trials in 4 American states; hung jury'; jury didn't come to uninanumous decision whether defendant guilty/not
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What did data include?
demographic charcterestics of jury; jury selection & offender type; only black defendant trials examined
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Control varible
Case type; violence, property, drug offences
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Another control varible
Strength of case
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Logistic regression
statistical analysis that examines the relationship between DV & IV being investigated; calculates the probability of them being related (identify which juror characteristic may influence their DM
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Results
Black defendants are less likely to be convicted by juries composed mostly of black jurors. Mainly white juries; more likely to convict black defendants
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Were statistics significant?
Yes; at p< .01
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What was found about black defendants?
They're less likely to be convicted of violent/ property crimes than drug crimes
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Conclusion
Diversity within the jury pool is likely to have an impact on the outcome of their decision making. Selection process of jury members- bias the outcome of trial
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Generalisability
Difficult to be certain the findings are representative of all trials- other factors influencable? e.g. accent/gender/personal experience
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Reliability
Data; actual jury trials- high reliability
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Applicability
Only focused on black defendants; not applicable to non-black defendants
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Validity
Natural setting; ecologically valid & number of contro variables to ensure racial compositon was investigated
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Objectivity
High; content analysis- quantitative data, inc. logistic regression
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Card 2

Front

Aim

Back

To examine whether racial make-up of a jury affects its decision making.

Card 3

Front

Hypothesis 1

Back

Preview of the front of card 3

Card 4

Front

Hypothesis 2

Back

Preview of the front of card 4

Card 5

Front

IV

Back

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