Complainant Gender Biases Jurors' Judgments in Rape Cases Despite Equivalent Perceptions of Expert Evidence.

Area of Science:

• Forensic Psychology
• Legal Psychology
• Gender Studies

Background:

• Rape complainants, particularly males, often face credibility challenges in legal settings.
• Existing research indicates potential biases in juror perceptions based on complainant gender.
• The influence of medical forensic expert testimony on these biases requires further investigation.

Purpose of the Study:

• To determine if medical forensic expert testimony can mitigate gender bias against rape complainants.
• To re-evaluate the impact of complainant gender on jury verdicts.
• To assess whether juror gender role attitudes moderate the effects of complainant and forensic nurse gender on credibility.

Main Methods:

• A study involving 773 participants (mock jurors) who reviewed a rape trial summary.
• Manipulation of complainant and forensic nurse gender as between-subjects variables.
• Measurement of verdicts, complainant credibility, forensic nurse credibility, and juror gender role attitudes.

Main Results:

• Replicated findings that male complainants were perceived as less credible.
• Contrary to predictions, fewer convictions were assigned when the complainant was male.
• Complainant gender did not affect mock jurors' perceptions of forensic nurse testimony; nurse gender and juror attitudes did not moderate effects.

Conclusions:

• Gender bias influenced verdict decisions but not the perception of evidence presented by forensic nurses.
• Extralegal factors can impact verdicts independently of evidence perception.
• Forensic nurse gender appears to have a limited impact on juror perceptions.