Crim topic 4: psychology and the courtroom Flashcards
Dixon
Role of accents and context in perceptions of guilt
Dixon: aims
.To test hypothesis that Brummie suspects recive higher rating of guilt than standard accent
.To see whther race and type of crime affect guilt likelihood
Dixon: sample
119 white undergraduates
Uni of Worcester
mean age 25
anyone who grew up in Birmingham excluded
Dixon: procedure
.listen to 2 min recorded conversation between:
male in 40s with standard accent (police officer) and male in 20s (susoect who was able to switch between normal and Brummie accent)
.suspect pleads innocent in all versions
.participants rate on 7 point bi polar scale of innocent to guilty
Dixon: IVs
Brummie vs standard accent
armed robbery (blue collar) vs cheque fraud (white collar)
white vs black
Dixon: results
.Brummie accent rated higher for guilt than standard
.highest guilt rating: Brummie, Black, Blue collar
Dixon: conclusions
Some accents are deemed guiltier than others e.g Brummie
Penrod and Cutler
witness confidence
Penrod and Cutler: procedure
.Participants shown one of 2 videos of mock trials for a robbery
.witness was either 100% or 80% confident about identification
.participants (mock jurors) rated whether they though suspect was guilty or not
Penrod and Cutler: IV and DV
IV: 80% or 100% confident
DV: did they find suspect guilty or not
Penrod and Cutler: sample
undergraduate students and experienced jurors
Penrod and Cultler: results
.when witness 80% confident - suspect guilty 60% of the time
.when witness 100% confident - suspect guilty 67% of the time
Penrod and Cutler: conclusions
The more confident a witness is, the more likely jurors are to be persuaded
Castellow
attractiveness
Cattellow: aim
to investigate whether defendant’s appearance will affect judgements about their personality
Castellow: procedure
.mock jury asked to read trial summary of 23 y/o receptionist accusing male employer of sexual harassment (sexual remarks)
.Then shown pictures of each of them and asked to decide whether they were guilty or not
Castellow: results
attractive, attractive: 71%
attractive, unattractive defendant: 83%
unattractive, attractive defendant: 41%
unattractive, unattractive: 69%
Castellow: suggestion
appearance can affect judgements of guilt
Pennington and Hastie
Story order
Pennington and Hastie: background
previous research suggested people may remember info at the beginning and end better than in the middle (primacy/recency effect)
Pennington and Hastie: aim
To investigate whether presenting evidence in story or witness order is more effective
Pennington and Hastie: results
defence order/prosecution order
story / witness = 31%
witness / story = 78%
story order more persuasive
Pennington and Hastie: suggestion
easier for juror to construct a story when evidence is presented in the order events occurred
Broeder
inadmissible evidence