An examination of jury verdicts for evidence of a similarity-leniency effect, an out-group punitiveness effect or a black sheep effect.

Abstract

Archival data from cases adjudicated by jury in El Paso and Bexar County, Texas, were used to test whether a similarity-leniency effect, an out-group punitiveness effect, or a black sheep effect (BSE; J. M. Marques, V Y. Yzerbyt, & J. P. Leyens, 1988) influenced jury decisions. Defendant ethnicity, jury ethnic composition, and strength of evidence against the defendant were coded for 418 closed noncapital, felony cases to test their impact on trial verdicts and sentence lengths. Results indicated complex relations exist among juror and defendant characteristics and their influence on trial outcomes. No support was found for any of the theoretical models as predictors of jury decision-making. Strength of evidence was the most influential variable for both verdicts and length of sentences. Case strength, defendant ethnicity, and jury composition were related to sentence lengths.