Reaching A Verdict - Witness Apeal Flashcards
What was the aim of Castellow’s study?
To test the hypothesis that an attractive defendant is less likely to be seen as guilty. Secondly, when the witness is attractive, the defendant is more likely to be found guilty. Finally to look for any gender differences in jury verdicts depending on attractiveness.
What was the study on attractiveness of the defendant?
Castellow, the effects of physical attractiveness on jury verdicts
What was the method of Castellow’s study?
A laboratory experiment using the mock-trial format. It used an independent measures design.
Who were the participants in Castellow’s study?
71 male and 74 female students who participated for extra credit in their introductory psychology classes at East Carolina University.
What was the procedure of Castellow’s study?
Participants were told they would be reading a sexual harassment case and would gave yo answer questions on it. With the case were attached photographs of the victim and defendant previously categorised by a panel on a scale of 1 (very unattractive) to 9 (very attractive). The dependant variable was measured by the answer to the question ‘do you think Mr Radford is guilty of sexual harassment?’ Towards the end of the case booklet they were given, participants were asked to rate the defendant and the victim on 11 bipolar scales such as dull-exciting, nervous-calm, warm-cold.
What were the results of Castellow’s study?
Analysis of the ratings revealed that physically attractive defendants and victims were rated positively on other personality variables as well. When the defendant was attractive, guilty verdicts were found 56% of the time against 76% of the time for an unattractive defendant. When the victim was attractive, the guilty verdict followed 77% of the time with 55% for the unattractive victim. No significant gender differences were found and both sexes were equally influenced by appearance.
What were the conclusions of Castellow’s study?
Although the findings come from a mock trial, when applied in the courtroom it seems that appearance does indeed have a powerful effect, and this finding has been supported by much other research. A defendant would be well advised to make the best of their appearance when appearing in court.
What was the study on witness confidence?
The effect of witness confidence on jurors’ assessment of eyewitness evidence
What was the aim of Penrod and Cutler’s study?
To examine several factors, including confidence, that jurors might consider when evaluating eyewitness identification evidence
What was the method of Penrod and Cutler’s study?
An experiment using a mock trial scenario. Independent measures design.
Who were the participants in Penrod and Cutler’s study?
Undergraduates, eligible and experienced jurors.
What was the procedure in Penrod and Cutler’s study?
A videotaped trial of a robbery was presented in which eyewitness identification played a key role. The witness testified that she was eith 80 or 100% confident that she had identified to robber. Nine other variables, all at both high and low level, were introduced into the film. Participants experienced either the high or low condition variables on a random basis and after watching the film they were asked to decide whether the robber was guilty or not.
What were the results of Penrod and Cutler’s study?
Witness confidence is the only statistically significant effect of the variables under the conditions of the mock trial. In a further nine studies, cutler looked at the relation between confidence and accuracy. The correlations across the nine studies between the two variables were 0.00 to 0.20, which is very weak.
What was the conclusion of Penrod and Cutler’s study?
The evidence in the field is consistent in showing that confidence is a poor predictor of witness accuracy. It also shows that juror’s trust in it is u diminished, even if the judge advises the jury to be wary of it in their summing up.
Which was the study on the impact of protective shields and videotape testimony on conviction rates?
Ross