Examining the Construct Validity of the Original and Revised JBS: A Cross-Validation of Sample and Method |
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Authors: | Lecci Len Myers Bryan |
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Affiliation: | (1) Department of Psychology, University of North Carolina at Wilmington, Wilmington, North Carolina |
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Abstract: | Factor analysis is a statistical technique that can provide an understanding of construct validity. Previous research examining the factor structure of the Juror Bias Scale (JBS) has uncovered problems in the scale's assessment of the constructs of probability of commission (PC) and reasonable doubt (RD). We here reevaluate the scale's constructs to better our understanding of the pretrial biases involved in the juror decision-making process. Importantly, previous findings have been limited to college student samples and trial material that has involved rape evidence. This study examines the construct validity of the JBS in a sample of 617 jury-eligible adults drawn from the community, and the predictive validity of the JBS is examined across 3 distinct trial scenarios. The results parallel earlier findings, indicating that although RD is a tenable and useful construct affecting juror decision-making, PC may be a less relevant pretrial bias. We therefore suggest that future research emphasize alternative constructs, such as confidence and cynicism in the criminal justice system. |
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Keywords: | juror decision-making construct validity cross-validation |
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