Will jurors correct for evidence interdependence in their verdicts? It depends

Throughout an investigation, pieces of evidence are likely to contaminate one another, yet at trial jurors are expected to treat pieces of evidence as if they are independent. Are jurors able to understand potential evidence contamination? The present study showed mock jurors a videotaped trial simulation. Participants were randomly assigned to hear testimony regarding one piece of evidence, two pieces of independent evidence, or two pieces of interdependent evidence. The study tested the hypothesis that jurors who hear evidence that is interdependent will be just as likely to find the defendant guilty as jurors who hear about two pieces of independent evidence. When an eyewitness's identification was the uncontaminated piece of evidence, our hypothesis was supported. However, when the confession was the uncontaminated piece of evidence, jurors seemed to understand that one piece of evidence had been influenced by another and adjusted their beliefs about the defendant's guilt accordingly. This study supports the conclusion that jurors can sometimes identify and correct for evidence contamination in their perceptions of a defendant's guilt. Implications for reform support are discussed.     

The Direct and Indirect Effects of Inadmissible Evidence1

College students (N= 270) assigned to six-person mock juries read summaries of a murder trial and then evaluated the defendant's guilt both before and after group discussion. The strength of the prosecution's case was manipulated, as was the inclusion of extra wiretapping evidence that favored the prosecution or the defense and was ruled admissible or inadmissible by the judge. Whether it favored the prosecution or the defense, inadmissible evidence directly biased subjects' reactions toward the defendant and indirectly biased their behaviors during the group discussions. None of these effects varied with the strength of the prosecution's case. The results also showed that the direct effects of inadmissible evidence were at least partially mediated by its indirect effects, suggesting that the process of deliberation can potentially help jurors to control the influence of inadmissible evidence on their decisions.     

Social Antecedents of Children's Trustworthiness

A total of 1329 children were tested twice across 1 year (M = 7 years 5 months of age at Time 1 (T1)) in the Zurich Project on Social Development. The measures at T1 were corporal punishment, neighbourhood trustworthiness and children's trustworthiness (not lying/cheating and not stealing). At Time 2 (T2), children reported the promise keeping of their classmates, which, via social relations analyses, yielded evidence for individual differences in reliability trustworthiness. Structural equation modelling analyses confirmed that there was stability in children's trustworthiness as a latent variable. The structural equation modelling further yielded evidence that (1) corporal punishment at T1 was negatively associated with children's trustworthiness at T1 and negatively predicted changes in children's trustworthiness and (2) neighbourhood trustworthiness at T1 was positively associated with children's trustworthiness at T1 and positively predicted changes in children's trustworthiness. The findings yielded support for the hypotheses that corporal punishment negatively, and neighbourhood trustworthiness positively, contributes to the development of trustworthiness in children. Copyright © 2011 John Wiley & Sons, Ltd.     

In Search of the Assembly Bonus Effect

Collins and Guetzkow's (1964) assembly bonus effect—in which effective interaction is held to allow group members to combine their individual knowledge in a manner that produces higher quality outcomes than would have been attributable to a combination of individual members' efforts—has been the subject of reductionist critiques that hold that a group will perform, at best, only as well as the sum of its parts. Pavitt's (2003) critique of group memory models and research is evidence that the debate between reductionism and the existence of an assembly bonus effect has expanded from the field of psychology to the field of communication. I posit that the lack of evidence supporting an assembly bonus effect may be due, at least in part, to a failure to conceptualize and operationalize communication's role in an appropriate way. Scholars in our field should continue to investigate process gains or the assembly bonus effect from a communication perspective because we have something to contribute to the debate that has heretofore been neglected.     

Charismatic Christianity and the Dilemmas of Globalization

Unlike his other books, Walter Burkert's Homo Necans and Creation of the Sacred both explicitly utilise evidence from Roman religion to reach their interpretive goals. But Burkert's use of that evidence is at variance with the meticulousness which has characterised his use of Hellenic evidence throughout his academic career. This article demonstrates how his use of Roman materials is at best impressionistic and incomplete; important evidence is too often missing, and too often a Hellenist's orientation apparently compromises what does appear. More detailed attention to Roman materials could sometimes improve and sometimes undercut the interpretation. Consequently, Burkert's large-scale conclusions are less inevitable than he, and his admirers, might like. Finally, explanations for these circumstances appear in the larger context of the traditional tension between Greek and Roman in the field of classical studies even today. A tacit assumption of those who specialise in Greek religion is that expertise there automatically becomes expertise in Roman religion.     

Unconscious processes influencing learning

This paper reviews recent experimental evidence on the active involvement of non-conscious processes in human functioning and examines the contribution of this evidence to understanding learning. The experimental concept of 'unconscious processing' is compared to the psychoanalytic notion of the 'unconscious' and some relationships between the two concepts are pointed out. The general idea stemming from experimental research is that, in parallel with what goes on at the conscious level, non-conscious dynamic processes have a very strong impact both in the process and the outcome of learning. Information, which in milliseconds is non-consciously assessed as threatening to the learner's psychological balance, may be disguised or blocked from further processing, therefore affecting the learner's educational competence. The educational material, relationship or atmosphere may provoke non-conscious emotions, attitudes and intentions, which 'inflate' cognition and can affect the individual's current processing of information in various (inhibiting or enhancing) ways. By carefully observing the points where the individual learner is blocked in the 'here and now', the teacher or therapist may deduce useful information on the issues that may unconsciously inhibit learning.     

心理治疗循证实践中“证据”的四个基本问题

循证实践正在成为西方心理治疗发展的主流方向。但如何理解循证实践的"证据"仍是见仁见智。部分社会大众甚至心理学专家仅将"循证"当作一种"修辞"或"时尚",顾名思义地界定"证据",或按主观信仰随意地选择与应用"证据"。文章以"证据"为研究焦点,试图建构系统理解"证据"的全面图景,探讨了心理治疗循证实践中关于"证据"的4个基本问题:(1)从历史考察与理论分析的视角出发,探讨了"心理治疗为什么需要证据";(2)从证据的类型范围、生产者及存在形式三个视角,描述了"心理治疗存在哪些证据";(3)从证据的科学程度、研究设计的严谨程度及解决实践问题的契合程度出发,阐述了"哪些证据才是好的证据";(4)从6个步骤推广证据及创新研究设计两个方面展开,分析了"在现实世界中如何推广与应用证据"。     

A qualitative analysis of mock jurors' deliberations of linkage analysis evidence

Evidence about a suspect's behavioural similarity across a series of crimes has been presented in legal proceedings in at least three different countries. Its admission as expert evidence, whilst still rare, is becoming more common thus it is important for us to understand how such evidence is received by jurors and legal professionals. This article reports on a qualitative analysis of mock jurors' deliberations about expert linkage analysis evidence. Three groups of mock jurors (N = 20) were presented with the prosecution's linkage analysis evidence from the USA State v. Fortin I murder trial and expert evidence for the defence constructed for the purposes of the study. Each group was asked to deliberate and reach a verdict. Deliberations were video‐recorded and subject to thematic content analysis. The themes that emerged were varied. Analysis suggested that the mock jurors were cautious of the expert evidence of behavioural similarity. In some cases they were sceptical of the expert. They articulated a preference that expert opinion be supported using statistics. Additional themes included jurors having misconceptions concerning what is typical offender behaviour during rape which suggests there is a need for expert linkage analysis evidence regarding behavioural similarities and the relative frequencies of crime scene behaviours. Copyright © 2010 John Wiley & Sons, Ltd.     

Relativism due to underdetermination of theory by data

Three different versions of the underdetermination thesis are identified in the later writings of the Edinburgh School by which its relativism is maintained. These I call the Stratagems UT, the Floating‐feather UT, and the Oxygen UT. It is argued the marshalling of historiographical evidence to support the Floating‐feather UT involves a version of the Liar's paradox; that a variant of the Stratagems UT with the evidence provided by the Edinburgh School is internally inconsistent; that the Edinburgh School has failed to show the adequacy and the conformity of the historical evidence offered to support the Oxygen UT; that the Oxygen UT thoroughly neutralizes empirical evidence of any efficacy, and, thus, of any role, first, in the truth/falsity evaluation of the theory at the physical level, and second, in the explanation of theory‐evaluation at the explanatory metaphysical or socio‐historical level. I also show that Larry Laudan is quite mistaken in concurring with the Edinburgh School's thesis of symmetrical explanation of theories insofar as their epistemic status is concerned.     

Interactive silences within spontaneous early infant–father ‘dialogues’

The present longitudinal and naturalistic study aims to investigate infants' and fathers' facial expressions of emotions during pauses preceding and following spontaneous early infant–father conversation. Studying emotional expressions in the course of pauses in early infant–father interaction is important because it may extend our knowledge on how, without being able to speak, infants begin communication and develop a capacity to share understanding of what they and Significant Others (such as fathers) mean by what they do. Eleven infant–father dyads from Crete, Greece, were observed during their natural interactions at home from the second to the sixth month of life. The microanalysis of fathers' and infants' facial expressions of emotions provided evidence that: (a) in the course of pauses preceding and following early infant–father conversation, either the infant is interested in the father while the latter expresses pleasure to the infant, or the infant expresses external interest while the father is interested in the infant, (b) infants seem to attune their descending and stable emotional intensity to the same direction as their father's emotional intensity, (c) infants and fathers remain consistent in their emotional expression in the beginning and at the end of the pause, and (d) infant and paternal pleasure and interest did not change significantly across the nine age points of this study. Exploratory analysis of the relationship of paternal and infant emotional expressions across infants' birth order provided evidence of certain differences and similarities. It is proposed that pausal interruptions preceding and following free early infant–father ‘dialogues’ constitute interactive silences, since in their course there is evidence of inter‐subjective emotional coordination and intra‐subjective regulation of emotion. Copyright © 2008 John Wiley & Sons, Ltd.     

The BBC and an American 'Faith Healer': The Making of a Folk Devil?

Morris Cerullo is an American healing revivalist who came to public attention in the UK during the 1990s. The paper looks at the portrayal of the controversial 'faith healer' and his 1992 Mission to London revival by the BBC's religion documentary series Heart of the Matter (HOTM). The evidence suggests that HOTM's coverage contained the key elements which are associated with 'moral panic' reporting: exaggeration and distortion, prediction, and symbolism. While the question of whether a panic over Cerullo was generated has been considered elsewhere, the focus here is narrowed in order to examine the BBC's role in labelling the evangelist as a contemporary 'folk devil'. The paper explores how and why this occurred and why it is problematic.     

Doubts on Spirituality: Interpreting Waldorf ritual

To investigate whether some kinds of kindergartens are better than others at bringing order, calm and stability to children's lives is, though not without its problems, fairly straightforward: the kinds of behaviour that count as evidence are relatively uncontroversial. Researchers can apply themselves, without too many qualms, to figuring out how kindergartens do it. Where spiritual development is concerned, because many kindergartens are already differentiated by religious or spiritual orientation - Jewish, Roman Catholic, Muslim, Waldorf, etc. - there is a temptation similarly to focus on how it is achieved. Relationships between the approaches and distinctive methodologies are prime areas for investigation. But such research might be premature. Any answer to the question 'To what extent have children been spiritually changed?' needs some agreement on the kinds of things we take as evidence of spiritual change. There are few signs of such agreement. This presents researchers, and also teachers, with a problem in proving their claims. In this article we try to substantiate this doubt by reflecting on some of our own research on Waldorf education. It too focused on 'how' and identified 'ritual' as a crucial factor in the Waldorf approach but we gradually realized that the epistemological issue was prior and had to be addressed.     

Robert Thompson: Karl Lashley's heir?

Robert Thompson spent a year as a research assistant at the Yerkes Laboratory of Primate Biology in Orange Park, Florida, where Karl Lashley was the director. After Lashley's death, Thompson began a search for the “locus of the engram,” which Lashley had been unable to find, eventually providing evidence supporting Wilder Penfield's conception of a centrencephalic system. Although Thompson's search was ultimately more successful than Lashley's, his name and accomplishments are little known outside a small circle of neuroscientists. The reasons for this lack of recognition of “Lashley's Heir” are discussed.     

The Role of Paternal Age in the Prediction of Offspring Intelligence

Recent evidence suggests that paternal age at birth influences myriad developmental outcomes among children, but few studies have examined the possibility for father's age to influence children's intellectual development among a sample of high-risk families. The authors use data from the Fragile Families and Child Wellbeing Study to examine the association between paternal age at birth among 480 male and 449 female children's verbal IQ scores, as assessed with a version of the Peabody Picture Vocabulary Test at 9 years old. The nonlinear association between paternal age and children's verbal intelligence was also examined. Paternal age at birth appears to have a marginally significant nonlinear relationship with male children's verbal IQ scores, despite controlling for a number of possible confounders associated with both young and advanced paternal age.     

IS NONDEFECTIVELY JUSTIFIED TRUE BELIEF KNOWLEDGE?

The traditional conception of knowledge as justified true belief is refuted in two famous counterexamples by Edmund L. Gettier. Roderick M. Chisholm has attempted to rescue a version of the traditional conception by distinguishing between defective and nondefective kinds of justification, and redefining knowledge more specifically as nondefectively justified true belief. Chisholm's revised definition avoids Gettier's counterexamples, but goes too far in the opposite direction, imposing conditions that are too narrow and not jointly necessary for knowledge. Chisholm's definition excludes some claims that intuitively constitute genuine knowledge¹ by entailing that if a true belief is invalidated as knowledge when defectively justified by a total body of evidence that also makes evident at least one false proposition, then no knowledge whatsoever can be supported by the same evidence. An alternative analysis of knowledge is proposed, according to which the potential loophole between the state of affairs that justifies belief in a proposition, and the state of affairs that makes the proposition true, permitted by the traditional concept of knowledge and discovered by Gettier's counterexamples, is closed by redefining knowledge as semantically-epistemically evidentially relevant justified true belief.     

Quine's Naturalized Epistemology and the Third Dogma of Empiricism

This essay reconsiders Davidson's critical attribution of the scheme‐content distinction to Quine's naturalized epistemology. It focuses on Davidson's complaint that the presence of this distinction leads Quine to mistakenly construe neural input as evidence. While committed to this distinction, Quine's epistemology does not attempt to locate a justificatory foundation in sensory experience and does not then equate neural intake with evidence. Quine's central epistemological task is an explanatory one that attempts to scientifically clarify the route from stimulus to science. Davidson's critical remarks wrongly assign concerns to Quine's view that it does not have and further obscures the status of his naturalized conception of epistemology.     

Knowledge,probability, and credibility

This paper concerns study of the credibility of human sources of evidence and its relation to the inferential value of testimony they provide. From a certain view of 'knowledge' in epistemology comes the suggestion that credibility assessment can be construed as a cascaded inference in which attributes of human source credibility are identified. Scholarship from evidence law in jurisprudence suggests an evidential basis for credibility assessment in terms of these attributes. Applying Bayes' rule to this cascaded inference offers a way of expressing and combining credibility-related beliefs in the process of assessing the inferential value of evidence.     

The association of positive orientation with health and psychosocial adaption

In this commentary, major contributions of the conceptualization of positive orientation as a measure of a personal disposition to optimistically evaluate oneself, one's past, and one's future experiences, promoting growth and commitment to life (Caprara, Alessandri, & Caprara, 2019), were presented. The evidence includes psychometric properties demonstrating a unidimensional trait, as well as reliability and validity of the measure that is substantiated across developmental ages and at least 15 different cultures. The evidence also implies that positive orientation may influence outcomes of not only individuals but also groups. Furthermore, the significance of positivity in research across vast domains of research attests to the validity of the measure, including social relationships, health issues, coping strategies, job satisfaction, and job performance, to name a few.