RT Journal Article
SR Electronic
T1 Expert Witness Confidence and Juror Personality: Their Impact on Credibility and Persuasion in the Courtroom
JF Journal of the American Academy of Psychiatry and the Law Online
JO J Am Acad Psychiatry Law
FD American Academy of Psychiatry and the Law
SP 63
OP 74
VO 37
IS 1
A1 Robert J. Cramer
A1 Stanley L. Brodsky
A1 Jamie DeCoster
YR 2009
UL http://jaapl.org/content/37/1/63.abstract
AB The present study was conducted to investigate the relationship between both expert witness confidence and juror personality with expert witness credibility, as well as expert witness credibility with juror sentencing outcome. Participants were presented with one of three randomly assigned filmed scenarios depicting various levels of manipulated witness confidence. They then completed a sentencing outcome item, the Witness Credibility Scale, and the Goldberg Five-Factor Markers. Expert witness confidence had a significant main effect on ratings of credibility, with moderate levels of manipulated confidence yielding the highest credibility. Juror extroversion was positively related to perceptions of expert witness credibility. Finally, juror ratings of expert witness credibility, as well as two subcomponents, predicted juror sentencing outcome.