The problem of measurement model misspecification in behavioral and organizational research and some recommended solutions

The purpose of this study was to review the distinction between formative- and reflective-indicator measurement models, articulate a set of criteria for deciding whether measures are formative or reflective, illustrate some commonly researched constructs that have formative indicators, empirically test the effects of measurement model misspecification using a Monte Carlo simulation, and recommend new scale development procedures for latent constructs with formative indicators. Results of the Monte Carlo simulation indicated that measurement model misspecification can inflate unstandardized structural parameter estimates by as much as 400% or deflate them by as much as 80% and lead to Type I or Type II errors of inference, depending on whether the exogenous or the endogenous latent construct is misspecified. Implications of this research are discussed.     

When scientific knowledge becomes scientific discovery: the disappearance of classical conditioning before Pavlov

In the nineteenth century, scientific materials in experimental physiology changed dramatically. In this context, phenomena that had been widely accepted were lost, sometimes to be reintroduced later as "discoveries." I describe the loss of the phenomenon of classical conditioning, later rediscovered by Ivan Pavlov. In 1896, Austrian physiologist Alois Kreidl demonstrated experimentally that animals anticipate the occurrence of food that is cued by a variety of stimuli. Kreidl stated, moreover, that the fact that animals can be called to food had been widely known to science since the 1830s. I describe Kreidl's work and discuss several factors that may have led to the disappearance of conditioning prior to its rediscovery by Pavlov.     

Age differences and similarities in the correlates of depressive symptoms

The authors investigated whether several life events or concerns were differentially related to depressive symptoms across 3 adult age groups (young adults, middle-aged adults, and older adults). They examined the relationships of 2 measures of depressive symptoms to work status and satisfaction, relationship status and satisfaction, loneliness, recent losses, parenting strain, and caregiving. Some differences between age groups in these relationships were found. Yet, most results suggested that, although the frequency with which people experience specific life events or concerns varies across the adult life span, the relationships between these events or concerns and depressive symptoms are similar across age groups.     

Are cognitive symptoms of schizophrenia mediated by abnormalities in emotional arousal?

We tested 28 individuals with schizophrenia (SZ) and 16 healthy individuals on a test of logical reasoning and "cognitive gating," defined as the ability to discriminate between relevant and irrelevant information in confirming or disconfirming a given belief. The Logical Reasoning and Cognitive Gating Task tests both processes under neutral and affect-laden conditions. This is done by presenting formally identical constructs using benign and emotionally arousing language. When separated by symptom profiles, we found statistically significant differences for performance and arousal response between patients with delusions, patients with formal thought disorder, and patients with neither delusions nor formal thought disorder, as well as between patients and healthy controls. When analyzed by error type, we found that nearly all errors by delusional patients were caused by overly restrictive information choice, a pattern that may be related to a delusional patient's tendency to "jump to conclusions" on Bayesian probabilistic tasks. This is in contrast to patients with formal thought disorder, whose low performance resulted also from overly extensive information choice. The tendencies towards restriction were exacerbated by arousal, which is consistent with studies on cognition and arousal in healthy individuals. After briefly examining research on emotional arousal and SZ, and the interaction between emotional arousal and restriction of perceptual cues in healthy individuals, we conclude by suggesting a model which accounts for the distinctive cognitive characteristics of delusional patients by their possessing distinct vulnerabilities to emotional arousal. Specifically, these results suggest the possibility that delusional patients process information in a manner that is essentially intact. However, delusional patients may possess an acute vulnerability to emotional arousal that might cause delusional individuals to behave cognitively as if they were healthy individuals under significantly more severe forms of stress.     

A Review of Epigenetic Markers of Tobacco and Alcohol Consumption

Over the past two decades, advances in genetic technologies have posed unexpected challenges to the ethical and legal framework guiding the application of the most recent advances in healthcare technologies. By and large, these challenges have been successfully met by the introduction by statutes such as the Genetic Information Nondiscrimination Act (GINA). However, over the past several years, these advances in the ability to measure genetic (or heritable) contributions to medical illness have been joined by advances in epigenetic (or acquired) contributions to common medical illnesses. Unfortunately, the moral and legal framework for the use of these epigenetic technologies, which can objectively determine the presence of medical illnesses such as diabetes or the consumption of substances of abuse, is not as well developed. This communication provides an introduction to the fundamentals of epigenetics and then reviews how some of the latest advances in this technology can now be used to assess the consumption of alcohol and tobacco. Next, the possible mechanisms through which these tools could be employed clinically are discussed. Finally, the authors outline the potential for misuse of this technology and suggest that well-informed policy could play a critical role in shaping the optimal implementation of epigenetic technologies. Copyright © 2015 John Wiley & Sons, Ltd.     

The Religion–Health Connection Among African Americans: What Is the Role of Social Capital?

Researchers have expressed growing interest in factors that may explain the relationship between religious involvement and health‐related outcomes. Faith‐based organizations are a significant institution in African American communities, both serving religious/spiritual needs and providing an important source of social capital. These communities often suffer a disproportionate burden of health conditions as well. The present study examined the role of social capital (social support, interconnectedness, and community participation) in the relationship between religious involvement (beliefs and behaviours) and physical and emotional functioning and depressive symptoms, among a national probability sample of African Americans (N = 803). Participants completed telephone interviews. We used structural equation modelling to test hypotheses based on the theoretical model. Results indicate that interconnectedness played a modest mediational role in the relationship between religious behaviours/participation and depressive symptoms. Interconnectedness was predictive of fewer depressive symptoms and marginally with better emotional functioning. Findings highlight the importance of trust in and commitment to one's community for health and have implications for community‐based health promotion initiatives. Copyright © 2014 John Wiley & Sons, Ltd.     

Suicide risk assessment: Clinicians’ confidence in their professional judgment

Suicide risk assessment is a critical component of mental health practice for which the stakes are high and the outcomes uncertain. This research examines the consistency with which clinicians make determinations of suicide risk and factors influencing clinical confidence. Seventy-one social workers interviewed two standardized patients performing in scenarios depicting suicidal ideation, judged whether the patient required hospitalization, and completed standardized suicide risk assessment measures. Self-ratings and qualitative interviews explored participants’ confidence in their judgment of risk. Participants had highly divergent views regarding whether or not the risk of suicide was sufficiently high to require hospitalization. However, regardless of the ultimate decision reached, participants were equally confident when recommending either clinical course of action. The variation in risk assessment appraisals in this study, despite at times high rates of confidence in risk appraisals, speaks to the need for ongoing training, consultation, and increased decision support strategies.     

Examining the Efficacy of Parent–Child Interaction Therapy with Children on the Autism Spectrum

Externalizing behaviors are a common component of the clinical presentation of autism spectrum disorders. Although traditionally used with typically-developing children, parent–child interaction therapy (PCIT) is one behaviorally-based parent training program that has demonstrated success in increasing child compliance, reducing problem behavior, and improving parent–child communication. The study examined the efficacy of PCIT as a treatment for children with autism spectrum disorders by employing a single subject, non-concurrent multiple baseline design across three subjects. Primary findings revealed increases in child compliance, reductions in child disruptive behavior, and improved parenting skills across participants. In addition, each caregiver reported high levels of satisfaction with the intervention. Results suggested that PCIT may be a treatment option for children on the autism spectrum with co-occurring behavioral difficulties. Although the non-concurrent nature of the multiple baseline design is a limitation, this study replicates and extends previous research investigating the efficacy of PCIT with children with autism and their parents.     

Should psychotherapists disclose their own psychological problems?

Background: Self‐disclosures by psychotherapists can encompass a wide array of content, including information about the personal life of the psychotherapist. Aim: The goal of this study was to empirically assess reactions to psychotherapists disclosing their own personal problems to clients with similar problems. Methodology: This study explored participants' (n = 155) reactions to vignettes describing psychotherapists as either disclosing or not disclosing their own history of psychological problems to clients presenting with similar problems. Findings: Compared to otherwise identical vignettes featuring psychotherapists who did not self‐disclose, vignettes featuring psychotherapists who self‐disclosed were rated more positively in a variety of ways. Specifically, psychotherapists in the vignettes featuring self‐disclosure were perceived as possessing a higher level of favourable personal qualities and as more likely to establish strong working relationships with clients and achieve success in therapy. Limitations of the method and alternate explanations for the results are considered. Implications: Implications regarding the judicious use by psychotherapists of self‐disclosure regarding their own past psychological problems are discussed.