Adherence with universal precautions after immediate, personalized performance feedback

We evaluated the effects of immediate, personalized performance feedback on adherence with hand hygiene by health‐care staff in the context of a multiple baseline design across participants. Target behaviors reached mastery levels and were maintained near 100% throughout 2 months of maintenance probes.     

Disentangling the prospective relations between maladaptive cognitions and depressive symptoms

In a four-wave, cohort-longitudinal design with a community sample of 515 children and adolescents (grades 2 through 9), this study examined the longitudinal structure of and prospective interrelations between maladaptive cognitions and depressive symptoms. Multigroup structural equation modeling generated four major findings. First, the longitudinal structures of maladaptive cognitions and depressive symptoms consist of a single time-invariant factor and a series of time-varying factors. Second, evidence supported a model in which depressive symptoms predicted negative cognitions but not the reverse. Third, the time-invariant components of cognition and depression were highly correlated. Fourth, the strength of the depression-to-cognition relation increased with age. Implications regarding the mechanisms underlying clinical interventions with depressed children are discussed.     

Improving general intelligence with a nutrient-based pharmacological intervention

Cognitive enhancing substances such as amphetamine and modafinil have become popular in recent years to improve acute cognitive performance particularly in environments in which enhanced cognition or intelligence is required. Nutraceutical nootropics, which are natural substances that have the ability to bring about acute or chronic changes in cognition have also been gaining popularity in a range of settings and applications including the workplace, driving and in the amelioration of age related cognitive decline. Huperzine A, Vinpocetine, Acetyl-l-carnitine, Rhodiola Rosea and Alpha-lipoic Acid are popular nutritional supplements that have shown promising benefits in improving a range of biological (e.g., blood flow, anti-inflammatory, anti-oxidant, and direct neurotransmitter effects) and cognitive processes from in vitro, animal and human clinical research. We report here the first human randomized clinical trial for cognition in which we administer a combination of Huperzine A, Vinpocetine, Acetyl-l-carnitine, R. Rosea and Alpha-lipoic acid (called Ceretrophin) vs placebo. Sixty participants (40 females and 20 males, with a mean age of 45.4 years, SD = 12.6) completed either the odd or even items from the Raven Advanced Progressive Matrices (APM) at baseline and the opposite odd or even items at week 4 after consuming either the combination nootropic or placebo. A significant study visit (time) × treatment condition interaction was found: F (1, 57) = 7.279, p = 0.009, partial η² = .113, with paired samples t-tests revealing a significant improvement in mean APM score from baseline to retest (week 4) (t(34) = ? 4.045, p < .001) for the Ceretrophin? group. Improvements in APM scores could be attributed to the active intervention over the placebo, indicating that the treatment improved general intelligence. Implications for improving our understanding of the biological basis of intelligence and pharmacologically improving human cognition are discussed.     

Personality disorder diagnostic thresholds correspond to different levels of latent pathology

To meet a diagnosis for a particular personality disorder (PD), among other requirements, a person must exhibit a specified minimum number of the features outlined for that PD, otherwise referred to as the diagnostic threshold. Despite many years of research on the DSM PDs, there is little empirical basis for the chosen thresholds. The present study used mechanisms of item response theory (IRT) to link the diagnostic thresholds of six PDs to their corresponding level of latent PD pathology. Consistent with our hypothesis, analyses of the data from 41,227 participants revealed that PD diagnostic thresholds corresponded to a wide range of latent pathology. For example, the diagnostic threshold for schizoid PD corresponded to 1.54 SDs of pathology whereas the threshold for dependent PD corresponded to 2.72 SDs of pathology. The current analyses have demonstrated for the first time that the latent pathology associated with each PD threshold varies widely, and thus has quantified what others accurately have speculated. Implications and considerations for the future directions of PD classification are discussed.     

Inappropriate and Excessive Guilt: Instrument Validation and Developmental Differences in Relation to Depression

Inappropriate or excessive guilt is listed as a symptom of depression by the American Psychiatric Association (1994). Although many measures of guilt have been developed, definitional and operational problems exist, especially in the application of such measures in childhood and adolescence. To address these problems, the current study introduces the Inappropriate and Excessive Guilt Scale (IEGS), assesses its validity for use with children and adolescents, and tests its relation to depression across development. From a sample of 370 children between 7 and 16 years old, results provided (1) evidence that items designed to assess inappropriate and excessive guilt converged onto a single underlying factor, (2) support for the convergent, discriminant, and construct validity of the IEGS in a general youth population, and (3) evidence of incremental validity of the IEGS over-and-above other measures of guilt. Results also supported the hypothesis that inappropriate and excessive guilt as well as negative cognitive errors become less normative and more depressotypic with age.     

Your love lifts me higher! The energizing quality of secure relationships

Three studies tested and confirmed the hypothesis that secure attachment relationships lead to feelings of security and energy, as well as willingness to explore. In Study 1, priming a secure attachment relationship increased felt security and energy. In Studies 2 and 3, felt energy mediated the effect of (primed) secure attachment relationships on willingness to explore. In Study 3, the effect of (primed) secure attachment relationships on felt energy and willingness to explore was independent of general positive affect. Secure attachments energize partners, thus enabling exploration.     

Do unto others as others have done unto you?: Perceiving sexism influences women's evaluations of stigmatized racial groups

The present research examines how making discrimination salient influences stigmatized group members' evaluations of other stigmatized groups. Specifically, three studies examine how salient sexism affects women's attitudes toward racial minorities. White women primed with sexism expressed more pro-White (relative to Black and Latino) self-report (Studies 1 and 3) and automatic (Study 2) intergroup bias, compared with White women who were not primed with sexism. Furthermore, group affirmation reduced the pro-White/antiminority bias White women expressed after exposure to sexism (Study 3), suggesting the mediating role of social identity threat. Overall, the results suggest that making discrimination salient triggers social identity threat, rather than a sense of common disadvantage, among stigmatized group members, leading to the derogation of other stigmatized groups. Implications for relations among members of different stigmatized groups are discussed.     

Practice Makes (Nearly) Perfect: Solving ‘Students‐and‐Professors’‐Type Algebra Word Problems

Three experiments with university students (Ns = 40, 36, and 36) who were non‐math majors explicitly examined whether repetition in performing ‘students‐and‐professors’‐type algebra word problems, which have been shown in the past to be vexingly difficult even for more advanced students, would spontaneously lead to higher rates of correct answers. Word order and situation model specificity were also examined to determine their effects on the rate of improvement. The strongest predictor of students producing correct equations (i.e., not producing the typical ‘reversal error’) was practice: In all experiments, participants spontaneously improved in equation accuracy almost to ceiling levels as they progressed, despite receiving no feedback. Tentative support is provided for the pedagogical value of repetition in solving problems, along with varying the wording of the problems. Copyright © 2012 John Wiley & Sons, Ltd.     

Rules for making psychiatric diagnoses in children on the basis of multiple sources of information: Preliminary strategies

Inherent in the structured diagnostic interviewing of children is the problem of how to resolve differences between the child's own report and that of the parent about the child. A related problem concerns the use of outside source of information about the child, such as information from the teacher. In this study, the authors review the decision-making process used in the assignment of summary psychiatric diagnoses based on the child and parent reports, as well as a number of other sources of information about the child. Provisional rules for making summary diagnoses of children are presented.This research was supported by NIAAA Center Grant Number AA-03539, and The John D. and Catherine T. MacArthur Foundation, Network III on Risk and Protective Factors in the Major Mental Disorders.