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By providing vignettes with manipulated scientific evidence, this research examined if including more or less scientific detail affected decision-making in regards to the death penalty. Participants were randomly assigned one of the two manipulations (less science and more science) after reading a short scenario introducing the mock capital trial and

By providing vignettes with manipulated scientific evidence, this research examined if including more or less scientific detail affected decision-making in regards to the death penalty. Participants were randomly assigned one of the two manipulations (less science and more science) after reading a short scenario introducing the mock capital trial and their role as jury members. Survey respondents were told that a jury had previously found the defendant guilty and they would now deliberate the appropriate punishment. Before being exposed to the manipulation, respondents answered questions pertaining to their prior belief in the death penalty, as well as their level of support of procedural justice and science. These questions provided a baseline to compare to their sentencing decision. Participants were then asked what sentence they would impose \u2014 life in prison or death \u2014 and how the fMRI evidence presented by an expert witness for the defense affected their decision. Both quantitative and qualitative measures were used to identify how the level of scientific detail affected their decision. Our intended predictor variable (level of scientific detail) did not affect juror decision-making. In fact, the qualitative results revealed a variety of interpretations of the scientific evidence used both in favor of death and in favor of life. When looking at what did predict juror decision-making, gender, prior belief in the death penalty, and political ideology all were significant predictors. As in previous literature, the fMRI evidence in our study had mixed results with regards to implementation of the death penalty. This held true in both of our manipulations, showing that despite the level of detail in evidence intended for mitigation, jurors with preconceived notions may still disregard the evidence, and some jurors may even view it is aggravating and thus increase the likelihood of a death sentence for a defendant with such brain abnormalities.
ContributorsBerry, Megan Cheyenne (Author) / Fradella, Hank (Thesis director) / Pardini, Dustin (Committee member) / Department of Psychology (Contributor) / School of Life Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2016-12
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Description
Blalock’s (1967) minority threat perspective is one of the most empirically investigated theories of crime control in criminological literature. A large body of research has tested this perspective and established a link between minority context and increased criminal justice controls. The perceived threat mechanisms hypothesized to facilitate this link, however,

Blalock’s (1967) minority threat perspective is one of the most empirically investigated theories of crime control in criminological literature. A large body of research has tested this perspective and established a link between minority context and increased criminal justice controls. The perceived threat mechanisms hypothesized to facilitate this link, however, have received relatively scant attention. In addition, no multidimensional scale of perceived minority threat has been developed. These oversights have significantly impeded the advancement of research testing the empirical validity and generalizability of Blalock’s premises across racial and ethnic groups.

Against this backdrop, this dissertation extends prior work by conducting three separate but interrelated studies. The first study focuses on the development and validation of a multidimensional Perceived Latino Threat Scale (PLTS). The second study investigates how the PLTS can inform the relationship between Latino context and punitive border control sentiment. The third and final study assesses the psychometrics of another multidimensional scale of perceived threat—the Perceived Black Threat Scale (PBTS), and examines the structural invariance and distinctness of the PBTS and PLTS.

Using data collected from two college samples, I relied on a variety of different methods across the three empirical studies, including confirmatory factor analyses, bivariate and partial correlation analyses, and ordinary least squares regression. Overall, the findings suggest that both the PLTS and PBTS are multidimensional constructs that are structurally invariant and empirically distinct. In addition, perceived Latino threat significantly influenced punitive border control sentiment, but did not surface as a mediating mechanism linking ethnic context to immigration attitudes. Furthermore, whereas objective Latino population context did not demonstrate significant effects on either perceived Latino threat or punitive border control sentiment, the results emphasized perceived Latino context as a key moderator in the relationship between perceived Latino threat and punitive border control sentiment. Thus, the findings support the multidimensionality of perceived threat, as well as the hypothesized link between perceived threat and punitive controls, but raises key concerns about the generalizability of Blalock’s perspective to explain the threat-control process of Latinos. Implications for theory and research are discussed.
ContributorsInfante, Arynn A (Author) / Wang, Xia (Thesis advisor) / Pardini, Dustin (Thesis advisor) / Spohn, Cassia (Committee member) / Arizona State University (Publisher)
Created2020