Truthiness and law: Nonprobative photos bias perceived credibility in forensic contexts

Nonprobative but related photos can increase the perceived truth value of statements relative to when no photo is presented (truthiness). In two experiments, we tested whether truthiness generalizes to credibility judgments in a forensic context. Participants read short vignettes in which a witness viewed an offence. The vignettes were presented with or without a nonprobative, but related photo. In both experiments, participants gave higher witness credibility ratings to photo-present vignettes compared to photo-absent vignettes. In Experiment 2, half the vignettes included additional nonprobative information in the form of text. We replicated the photo presence effect in Experiment 2, but the nonprobative text did not significantly alter witness credibility. The results suggest that nonprobative photos can increase the perceived credibility of witnesses in legal contexts.     

The Effect of Asymmetrical Use of Metacommunicative Behavior on Judgments of Power

Abstract

The metacommunicative behavior of one of two characters in a fictional scenario and the depth of their relationship were manipulated. U.S. students were asked to evaluate the characters' behavior. It was predicted that (a) the characters who used metacommunication to avoid being imposed upon would be perceived as having more power than those who did not and that (b) power and perceived tension would be judged higher when the characters were portrayed as friends than when they were portrayed as strangers. The results indicated that, as predicted, the use of metacommunication led to higher ratings of power and tension. Relationship depth did not affect power judgments but did affect perceived tension.     

The Role of Prototypical Situations in the Perceptions of Prejudice of African Americans1

Inman and Baron (1996) found that African Americans and Whites possess prototypes for racist behavior that involve Whites oppressing African Americans. However, prototypical content may be more detailed and specific for African Americans because of differing cultural experiences. In the present experiment, undergraduates read stories about interpersonal encounters representing prototypical and nonprototypical situations. Actor race ambiguity was manipulated by the presence or absence of photographs. As expected, Whites tended to make equal ratings of prejudiced behavior for prototypical and nonprototypical situations. However, African Americans perceived more prejudice in prototypical vignettes than in nonprototypical vignettes. They also perceived stronger prejudicial displays and more dispositional motivation for targets in prototypical vignettes. The results suggest that African Americans have heightened sensitivity to prejudice in specific situations, a factor that may contribute to racial confrontations and misunderstandings.     

What people say and what they do: The differential effects of informational cues and task design

Do ratings of tasks accurately reflect the influences on people's choices of tasks? Does information from others have strong effects on attitudes toward tasks, but weak effects on task choices? What effect does direct experience with tasks designed to be stimulating or dull have on task ratings and task choices? To answer these questions, we collected data from 24 male and female undergraduates who individually worked on four tasks involving the analysis of cartoons. Informational cues and task design were cross-cut so that each task was either enriched or unenriched and received either positive or negative cues. Subjects rated the tasks on scales that measured how motivating each task was perceived to be, and how interesting and enjoyable each task was. Then subjects worked on a freely chosen sequence of tasks for 10 min. Cues had significant main effects on task ratings, but not on overall choice of tasks. Task design had no main effect on ratings, but did significantly affect overall choices. These results suggest that behavioral choices are determined more by direct experience with tasks than by information provided by others.     

The impact of perceived experience on likelihood judgments for self and others: an experimental approach

This study examines the effect of an experimental manipulation of perceived experience on self and others' likelihood ratings for a set of relatively commonplace misfortunes. Participants were randomly assigned to a condition in which they were asked whether they had ever experienced the events (designed to induce higher perceived experience) or whether they had done so frequently, typically, etc. (designed to induce lower perceived experience). The manipulation led to increases in ratings of both perceived self‐likelihood and others' likelihood, in ease of imagining the outcome and recall of a past occurrence, and to decreases in perceived control over the events in the higher perceived experience condition. The increases in ease of imagining mediated the impact of manipulated experience on comparative likelihood whereas the decreases in perceived control did not. There was little evidence that event controllability moderated the impact of experience on comparative likelihood for these events. Copyright © 2006 John Wiley & Sons, Ltd.     

Intelligence and Nationality of Wisconsin School Children

Abstract

Among a sample of U.S. students, the effects of 3 forms of nonverbal behavior (facial expression, visual behavior, and body posture) on perceptions of power bases (reward, coercive, legitimate, referent, expert, and credibility) were investigated. In contrast to previous investigations of nonverbal behavior and power, a precise construct definition and reliable and valid operational definitions of power were used, and specific perceptions of power bases were examined. A relaxed facial expression, compared with a nervous facial expression, increased the ratings for referent, reward, legitimate, expert, and credibility power bases. Also, direct eye contact yielded higher credibility ratings than indirect eye contact.     

Communicator credibility and persuasian

Prior research has usually found a positive relationship between a communicator’s perceived credibility and his persuasiveness. An experiment was designed to test the hypothesis that the perceived vested interest of a speaker, the position the speaker advocated, and the social similarity between audience and speaker would influence attributions of credibility and affect the speaker’s persuasiveness. Three variables were manipulated in a 2 by 2 by 2 factorial design. Ss read a speech that either favored (pro) or opposed (con) student voting rights; the speech was attributed to a speaker who was either similar (student) or dissimilar (townie) to the stndent audience and who either had a vested interest (running for elective office) or had no vested interest (merely giving his opinion) :in the position he advocated. As predicted, the similarity of the speaker to the audience, the vested interest of the speaker, and the position advocated in the speech strongly influenced attributions of credibility. However, in contrast to much previous research, persuasion was found to be relatively independent of the variation in the speaker’s perceived credibility. It was suggested that the failure of attributions of credibility to relate to persuasion may have been due to the high degree of ego involvement for the Ss in the topic of student voting rights.     

FIGURATIVE LANGUAGE AND SOURCE CREDIBILITY: A PRELIMINARY INVESTIGATION AND RECONCEPTUALIZATION1

This study investigated the effects of figurative language on perceived source credibility. Subjects read one of five messages: literal, brief metaphor, extended metaphor, brief simile, or extended simile, and then responded to credibility and attitude scales. Results indicated that the use by a message source of an extended metaphor, an extended simile, or a brief simile enhanced the perceived authoritativeness of the source.     

Attributions of cause for vehicular accidents: effects of participants' sex, information level, and instructions to identify with the actor

Attributions of cause for vehicular accidents were studied by means of a questionnaire presenting fictional accident vignettes involving a main character (the actor). The randomly assigned questionnaires presented either Instructions for Identification with the actor or for Nonidentification. Each questionnaire randomly presented six vignettes, two vignettes randomly drawn from each of three Information Levels (Low, Medium, and High). Participants were undergraduates, 24 men and 26 women, who gave the cause of each accident in writing and rated that cause on three dimensions using 7-point scales for Internality-Externality, Stability, and Globality. Identification Instructions were associated with more External ratings than were Nonidentification Instructions. The High Information Level was associated with more Internal and higher Globality ratings than the lower Levels. In interactions for participants' sex, women under Identification Instructions gave more External ratings and lower Stability ratings than women given Nonidentification Instructions or men in the Identification condition.     

The Effects of Expertise on the Hindsight Bias

We present data from three experiments examining the effects of objective and subjective expertise on the hindsight bias. In Experiment 1, participants read an essay about baseball or dogs and then answered questions about the baseball essay to the best of their ability, as if they had not read the essay, or to the best of their ability, although they read about dogs. Participants also completed a quiz about baseball rules and terminology, which was an objective measure of expertise. Results demonstrated that as participants' baseball expertise increased, their inability to act as if they never read the essay also increased; expertise exacerbated the hindsight bias. To test the effects of subjective expertise on hindsight bias and investigate factors underlying the relationship, participants in Experiment 2 ranked five topics in order of expertise and gave feeling‐of‐knowing (FOK) ratings for questions from these topics. Foresight participants then saw each question again and answered the questions; hindsight participants saw the questions and answers and gave the probability they would have known the answers had they not been provided. Hindsight bias increased with subjective expertise as did average FOK ratings. In Experiment 3, we experimentally manipulated perceived expertise but found that neither average FOK ratings nor hindsight bias was affected by experimentally induced expertise. Taken together, the results demonstrate that expertise exacerbates both objective and subjective hindsight bias but that an FOK, which likely exists only when expertise is naturally acquired, is necessary to engender the detrimental effect of expertise on the hindsight bias. Copyright © 2016 John Wiley & Sons, Ltd.     

Memory failures appraisal in younger and older adults: role of individual difference and event outcome variables

The authors examined the role of individual difference and event outcome variables in younger and older adults' memory failures appraisal. Participants read vignettes that described fictitious younger characters (in their 20s-30s) or older characters (in their 60s-70s) who had experienced a minor or severe consequence of their forgetfulness. The authors solicited attribution ratings on the potential causes of the forgetfulness and memory opinion ratings. Younger and older adults' ratings were largely similar, although age differences occurred on the effort and luck attribution scales. The consequences of the forgetting had a sizable impact on both the attribution and memory opinion ratings. Individual differences in self-reported memory had a relatively small impact on causal attribution and memory opinion ratings. These results suggested that people weigh their judgments of fictitious forgetful characters against event outcomes more so than ageist beliefs that portray a negative image of cognitive competence in later life.     

Perceptions of coercive sexual behavior by males and females

In this study male and female subjects were given six vignettes depicting heterosexual interactions between acquaintances. The vignettes described sexual advances representing different points along a coerciveness continuum. The gender of the aggressor and the victim were varied. The subjects were then asked to indicate their perception of the degree of coerciveness involved. In addition, they were asked to attribute both positive and negative feelings to the victim. The results indicated that male subjects perceived these sexual advances as slightly more coercive when the victim was a female, whereas females perceived the advances as slightly more coercive when the victim was a male. Also, there was a tendency to view the low-coercion activities as more coercive when the males were the victim, whereas the opposite was true for the vignettes rated high on coercion, especially the one describing physical coercion. The attributions of positive and negative feelings tended to parallel the coerciveness ratings. Typically, the more coercive activity was seen as, the less positive feelings and more negative feelings the subjects attributed to the victim. The results were discussed in terms of stereotypical beliefs regarding the sexuality of males and females and attribution theory.     

EQUIVOCATION: CHARACTER INSURANCE

This study investigated the effects of equivocation (deliberate vagueness) on source credibility (competence and character), agreement, and perceived vagueness. The results indicated that the equivocated message produced significantly higher character ratings for the speaker than did the clearly stated disagreeable message, but there was no significant difference for the competence ratings. The equivocated message also produced significantly more agreement than the clear message. These findings, as well as others, led the researchers to conclude that equivocating disagreeable arguments helps preserve credibility—most notably the character ratings; and that character is the best predictor of message agreement. The results were interpreted in terms of information processing theory, suggesting that equivocated messages evoke meanings which are congruent with prior experience and attitudes. In contrast to the tenet advocated since antiquity that all issues should be addressed clearly, this study indicates that under certain circumstances the speaker can enhance effectiveness by using the rhetorical technique of deliberate vagueness.     

How Television News Viewers Deal with Facts that Contradict Their Beliefs: A Consistency and Attribution Analysis1

This study was conducted to investigate the effect of a counterattitudinal news story on the perceived credibility of a television newscaster. In the basic 2 × 2 design, subjects, who were either pro-student or pro-police, viewed a newscast in which either students or police were blamed for initiating a violent confrontation. The results indicated that subjects, for whom the newscast's conclusion was counterattitudinal (as compared to those for whom the conclusion was consistent with initial student-police attitudes), rated the newscast as less objective, rated the newscaster as less credible and more intending to persuade, and attributed to the newscast and newscaster more extreme political positions consistent with the newscast's conclusions The implications of these results for the problem of newscaster credibility are discussed, as are the connections between the present results and previous research on communicator credibility.     

Movement synchrony and perceived entitativity

Movement synchrony has been theoretically linked to the emergence of a social unit. To empirically investigate whether similar movement rhythms are an antecedent of perceived entitativity, movement rhythms were experimentally manipulated in four studies. Using this novel approach, stick figures waving in synchrony were found to be rated higher on entitativity than stick figures waving in different rhythms (Study 1), and this effect was extended to interactional synchrony, where different movements are performed in the same rhythm (Study 2). Objective differences in movement rhythms are linearly related to ratings of perceived entitativity, and this relationship is partially mediated by the subjectively perceived similarity of movement rhythms (Study 3). These results also held for entitativity judgments for videotaped individuals waving rhythmically (Study 4). These results support the hypothesis that movement rhythms are an important source of information which observers use to infer the extent to which individuals are a social unit.     

Repetition-based credibility enhancement of unfamiliar faces

This experiment demonstrated that rating the credibility of nonfamous faces results in a significant increase in rated credibility on a subsequent encounter relative to new nonfamous faces. The degree of credibility enhancement is comparable for both honesty and sincerity ratings and at both short (2-day) and long (14-day) interrating intervals. Furthermore, credibility enhancement was independent of recognition; ratings were significantly higher for repeated faces, regardless of whether they were remembered. Although female faces were rated more credible than male faces, there was no gender difference in the degree of credibility enhancement with repetition. Conditional analyses revealed that actual, rather than perceived, repetition formed the basis of credibility enhancement. Future research should compare repetition effects on both credibility and affect as well as the durability of such effects over time.     

Examining culturally based variables associated with ethnicity: influences on credibility perceptions of empirically supported interventions

Treatment rationales for 2 widely used and empirically supported interventions, cognitive therapy (CT) and time-limited dynamic psychotherapy (TLDP), were examined for their perceived credibility among 136 Asian American college students. This study conducted a comprehensive analysis of culturally based variables (often assumed to underlie ethnicity) and their related effects on credibility perceptions. Variables assessed included cultural identity, self-construals, values, and mental health beliefs. Participants were randomly assigned to read either a CT or TLDP treatment rationale for depression and then rated the credibility of the interventions. Results indicated that cultural identity and self-construals moderated credibility ratings across CT and TLDP rationales. Findings underscore the importance of moving beyond ethnic group analyses to the examination of specific culturally based variables.     

Perceptions of childfree women: The role of perceivers' and targets' ethnicity

The purpose of this study was to examine the impact of ethnicity on perceptions of voluntary childfree women. We were interested in determining whether mothers were viewed as more stereotypically positive than women without children and how the ethnicity of the participant and the target impacted participants' ratings. We utilized vignettes and manipulated motherhood status and ethnicity of the target. Participants (n = 224) were comprised of female university students in the southwestern region of the United States. Results indicated that women view childfree women negatively. Moreover, women view African American mothers more favourably than childfree African American women. Results are discussed in terms of gender roles in communities of colour. Copyright © 2010 John Wiley & Sons, Ltd.