Credibility,source identification and message acceptance: The case of political persuasion

Abstract

This paper addresses questions related to effects of source credibility on message acceptance. More specifically, we look at (a) the effects of attributed credibility of the source on message acceptance in situation of source identification versus non‐identification, and (b) the effects of attributed credibility of two competitive sources on the acceptance of their respective messages in positively versus negatively predisposed audiences.

Source identification and source competition relate to the more general problem of persuasion and inoculation. Political parties often strive to persuade partisan, hostile, or politically neutral audiences while simultaneously trying to inoculate them against the message of opposing parties. These processes of persuasion can take place in situations where the source is either identified (e.g., a well‐known politician clearly linked with a political party) or not identified (e.g., a journalist who presents a politician's point of view without naming him/her). In cases where the source has been identified, the audience may remember the message itself and yet forget who had advanced the message. This raises the question of the extent to which communicators should concern themselves with the attributed credibility of the source in situations of either source identification or non‐identification? And how important is credibility in reinforcing the support of partisans or in persuading neutral and hostile audiences? These are some of the issues we examine experimentally in this article.     

If Brain Scans Really Detected Deception,Who Would Volunteer to be Scanned?

Abstract: Recent neuroimaging studies investigating the neural correlates of deception among healthy people, have raised the possibility that such methods may eventually be applied during legal proceedings. Were this so, who would volunteer to be scanned? We report a “natural experiment” casting some light upon this question. Following broadcast of a television series describing our team’s investigative neuroimaging of deception in 2007, we received unsolicited (public) correspondence for 12 months. Using a customized template to examine this material, three independent assessors unanimously rated 30 of an initial 56 communications as unequivocally constituting requests for a “scan” (to demonstrate their author’s “innocence”). Compared with the rest, these index communications were more likely to originate from incarcerated males, who were also more likely to engage in further correspondence. Hence, in conclusion, if neuroimaging were to become an acceptable means of demonstrating innocence then incarcerated males may well constitute those volunteering for such investigation.     

Maternal employment and adolescent sexual behavior

This study investigated whether maternal employment would be associated with teenage sexual attitudes and behaviors likely to increase the probability of teenage pregnancy. Female subjects whose mothers were employed outside the home during the high school years (a) had a greater tendency to begin sexual relations before age 19, (b) expressed less concern regarding the risk of unintended pregnancy, and (c) scored lower on an objective test of their practical knowledge about contraception.Received Ph.D. in social psychology from the University of Washington. Research interests include personality and environmental influences on adjustment.Received Ph.D. from University of Georgia. Current research interests are in behavioral teratology.Received Ph.D. from Oklahoma State University. Research interests are in loneliness and adjustment.Received Ph.D. from North Carolina State University. Research interests are in population and urban sociology.     

On intelligence and crime: a comparison of incarcerated sex offenders and serious non-sexual violent criminals

The impact of low IQ on crime has been a focus of debate for several decades now. Although sociologists have virtually removed it from the list of possible factors influencing crime, the impact of IQ on crime continues to generate a significant amount of scientific research and a substantial number of publications. The purpose of this study is to assess intellectual levels and to compare two groups of incarcerated criminals. Using MANCOVA and ANCOVA procedures, 261 sex offenders and 150 non-sexual violent criminals were compared on IQ subscales. The results show significant differences on vocabulary, comprehension, arithmetic, mental math computations, object assembly, letter-number sequencing, and perception subscales, as well as on performance IQ and total IQ. The impacts of penal filtering and sample composition are hypothesized to explain differences between the two subgroups. Theoretical and practical implications are discussed.     

Urban and rural differences in the relationship between substance use and violence

This article examines the relationship between substance use and violence across rural-urban and Appalachian places of residence. The data come from a larger study on the health service use of 637 men who have a history of chronic substance abuse and who were incarcerated in four Kentucky prisons. The findings generally support previous research on substance use and violence but do not support Fischer's (1995) subculture theory of urbanism. Contrary to expectations, the population size of the prisoners' residence was not significantly associated with the prisoners' levels of violent victimization, violence toward others, violence toward intimate partners, or overall violence in the year prior to incarceration. Appalachian residency was also not associated with violence. Recognizing that the effect of substance use on violence perpetrated against others does not vary significantly by urban or rural residence may be helpful for designing violence prevention programs and planning law enforcement efforts.     

Juvenile Courts after 100 Years: Past and Present Orientations

Juvenile institutions were developed in the nineteenth century. In the United States, they prompted an extension of the parens patriae doctrine, which provided a basis for the creation of the juvenile court a century ago. The protective orientation of the court was intended both for juvenile delinquents and children in danger. Important changes have occurred since the 1960s. Procedural guarantees for delinquents and de-institutionalisation of children in danger have created a clear distinction between the two groups. Diversion has introduced an alternative to the court process. Policies aimed at young offenders have moved gradually in the direction of the adult criminal court model. The article presents an overview of this evolution, essentially for North America.