The everyday production of knowledge: individual differences in epistemological understanding and juror‐reasoning skill

This study investigated the untested assumption that people's everyday reasoning reflects different understandings of the nature of knowledge and knowing. The epistemological stances of 180 prospective jurors were assessed with an interview that probed the nature and source of the discrepant knowledge claims of two historical accounts. The researchers derived global epistemological levels from these interviews. The jurors also heard trials and offered justifications for their verdict choices. The researchers assessed these justifications for whether subjects could use various reasoning skills successfully. Epistemological level, but not educational level, age, or gender, predicted juror‐reasoning skills and degree of certainty about verdict choice. Epistemological level, mediated by the juror‐reasoning skills, was a better predictor of general argument skill than certainty about verdict choice and the amount of evidence used in arguing for a verdict. The results indicate that epistemological understandings underlie specific juror‐reasoning skills and overall argument ability. Copyright © 2002 John Wiley & Sons, Ltd.     

Drinking patterns of pathological gamblers before, during, and after gambling treatment

Despite the high co-occurrence of alcohol consumption and gambling, few studies have investigated alcohol use changes during gambling treatment. Using latent growth modeling, we examined weekly alcohol use trajectories of treatment-seeking pathological gamblers across 36 weeks, allowing rates of change to differ across the 12-week pretreatment, during-treatment and posttreatment periods. For these secondary data analyses, we retained drinking gamblers (N = 163) from a combined sample of two randomized clinical trials for the treatment of pathological gambling. Results indicated a decrease in alcohol use corresponding with treatment entry and maintenance of less drinking during treatment and posttreatment. Despite these decreases in alcohol use overall, 31% (50 of 163) of participants exhibited risky drinking during the treatment or posttreatment periods. Gender, age, at-risk drinking (at any point in the 36-week interval), baseline gambling severity, treatment condition, and gambling during treatment predicted latent alcohol use growth factors. Although entry into gambling treatment was temporally associated with reductions in alcohol use in this retrospective analysis, a substantial portion of the sample exhibited at-risk drinking after treatment entry, suggesting that interventions targeting reductions in alcohol use may be useful for this population.     

Behavioral assessment of gambling: an application of the timeline followback method

The Gambling Timeline Followback (G-TLFB), a measure of gambling behavior that uses the timeline followback methodology, was psychometrically evaluated with samples of frequent-gambling young adults. Seven dimensions of gambling behavior were assessed: type, frequency, duration, intent, risk, win-loss, and consumption of alcohol while gambling. The G-TLFB demonstrated adequate to excellent test-retest reliability with a sample of 57 frequent gamblers (r=.75 to.96) and with a group of 34 disordered gamblers (r=.73 to.93). With a separate sample of 58 frequent-gambling participants, convergent, concurrent, and discriminant validity were assessed. The G-TLFB correlated positively with daily self-monitoring reports (r=.59 to.87). The dimensions of frequency and duration demonstrated concurrent validity with gambling screening instruments, and standard drinks consumed while gambling demonstrated concurrent validity with a measure of alcohol misuse. The G-TLFB also demonstrated discriminant validity with demographic variables and a measure of positive impression management.     

Effects of maternal stress on development and behaviour in rat offspring

Retrospective studies suggest that gestational stress in humans can delay the attainment of developmental milestones, increase the incidence of allergic reactions and respiratory infections and cause behavioural abnormalities in the children. Our studies and others have shown that prenatal stress in rats can mimic several of these developmental and behavioural alterations. These include a suppression of immune function, but also enhanced sensitivity to allergens. Prenatally-stressed rats, like children, show a reduced propensity for social interaction and increased anxiety in intimidating or novel situations. They have physiological and behavioural alterations consistent with depressive symptoms, including a phase-shift in their circadian rhythm for corticosterone, sleep abnormalities, and greater acquisition of learned helplessness under appropriate conditions. Prenatally-stressed male rats also show demasculinisation and feminisation of their sexual behaviour. The developmental and behavioural abnormalities in prenatally-stressed offspring may be mediated by alterations in the activity of endogenous opioids or neurosteroids, since several of them can be corrected by maternal administration of an opioid antagonist or by drugs like diazepam and allopregnanolone that modulate GABA transmission.     

Intrinsic religiosity protects believers from the existential fear of a human Jesus

ABSTRACT

The present study examined the role of internalised religious beliefs in defending against existential concerns aroused from a creaturely Jesus. Prior work has found that biologically human traits (e.g., vomiting, sweating, etc.) can increase death concerns when applied to both humans and a god. Intrinsic beliefs, however, have been shown to reduce mortality awareness. In the current study, religious participants were primed with thoughts of either a human or neutral Jesus followed by a single item measure about fear of death. A moderated regression analysis found that whereas high intrinsic individuals were buffered from existential concerns, low intrinsic individuals experienced a greater fear of death when primed with a human Jesus. These results replicate prior work within terror management theory and the psychology of religion suggesting that internalised beliefs serve a protective function against existential anxieties.     

The effect of a reason's truth-value on the judgment of a fallacious argument

Informal reasoning fallacies are arguments that are psychologically persuasive but not valid. In the context of informal reasoning fallacies, the truth-value of the reason in support of a given claim is irrelevant to judging the validity of the argument as a whole. This property stands in sharp contrast with the general role of the reason's truth-value in judging arguments in general. The aim of this study was to test the hypothesis that in the context of informal reasoning fallacies the truth-value of a reason influences pupils' judgment of the extent to which the reason supports the claim. The results of the study confirm the research hypothesis.     

From posts to protection: Ethical considerations regarding forensic psychiatrists and a duty to warn based on social media

Increasing use of social media in forensic mental health evaluations will lead to new challenges that must be resolved by forensic practitioners and the legal system. One such dilemma is the discovery of information that would typically trigger a legal duty and professional ethics obligation for mental health professionals to breach doctor-patient confidentiality to promote public safety and prevent harm to vulnerable third parties. Although the law and professional organizations offer clear guidance for practitioners in the treatment role, there is currently no clarity from the law or instruction from professional organizations on what mental health professionals should do if they discover such information during a confidential forensic evaluation. For example, a forensic evaluator may find evidence on social media of an evaluee’s threats to seriously harm others, abuse of children and the elderly, or severely impaired driving. There are no clear guidelines for how a forensic psychiatrist should respond in these complicated situations. We review the legal concepts and historical evolution of confidentiality, privilege, and mandated reporter duties that forensic practitioners should consider in these legally ambiguous situations. Finally, we discuss ethics frameworks practitioners can implement to determine their most ethical course of action when faced with such dilemmas.     

The performance of two pathological gambling screens in college students

The psychometric properties of two pathological gambling (PG) screening instruments, the South Oaks Gambling Screen (SOGS) and the Massachusetts Gambling Screen-DSM-IV subscale (MAGS), were explored in a sample of college students (N = 159). Participants completed the two screening instruments, a diagnostic interview for PG, the Gambling-Timeline Followback (G-TLFB), Gambling Self-Efficacy Questionnaire (GSEQ), and the Hopkins Symptom Checklist (HSCL). Both screening measures were found to have adequate internal consistency and were highly correlated with each other and the diagnostic interview. The screening measures demonstrated convergent and discriminant validity. Using the diagnostic interview as the criterion measure, the SOGS demonstrated better sensitivity in identifying PG college students than the MAGS. The MAGS demonstrated better specificity in identifying non-PG college students than the SOGS. The results of this study suggest that although neither measure is perfect in identifying PG college students, the SOGS is a more appropriate measure for screening purposes.