Myopic social prediction and the solo comparison effect

Four experiments explored the psychological processes by which people make comparative social judgments. Each participant chose how much money to wager on beating an opponent on either a difficult or a simple trivia quiz. Quiz difficulty did not influence the average person's probability of winning, yet participants bet more on a simple quiz than on a difficult quiz in the first 3 experiments. The results suggest that this effect results from a tendency to attend more closely to a focal actor than to others. Experiment 4 directly manipulated focusing; when participants were led to focus on the opponent instead of themselves, the effect was reversed. The discussion relates the results to other literatures including overly optimistic self-evaluation, false consensus, overconfidence, and social comparison.     

A Cantorian Argument Against Infinitesimals

In 1887 Georg Cantor gave an influential but cryptic proof of theimpossibility of infinitesimals. I first give a reconstruction ofCantor's argument which relies mainly on traditional assumptions fromEuclidean geometry, together with elementary results of Cantor's ownset theory. I then apply the reconstructed argument to theinfinitesimals of Abraham Robinson's nonstandard analysis. Thisbrings out the importance for the argument of an assumption I call theChain Thesis. Doubts about the Chain Thesis are seen to render thereconstructed argument inconclusive as an attack on the infinitelysmall.     

The sexual dimorphic association of cardiorespiratory fitness to working memory in children

The present investigation examined the sexual dimorphic patterns of cardiorespiratory fitness to working memory in preadolescent children (age range: 7.7–10.9). Data were collected in three separate studies (Study 1: n = 97, 42 females; Study 2: n = 95, 45 females; Study 3: n = 84, 37 females). All participants completed a cardiorespiratory fitness assessment in addition to a specific measure of working memory (i.e. the operation span task, the n‐back task, or the Sternberg task). Results from all three samples revealed that higher cardiorespiratory fitness levels were associated with better working memory performance only for males with no such relation observed for females. In addition, the sexually dimorphic pattern was selective for the most challenging working memory conditions in each task. Together, these findings reveal new evidence that cardiorespiratory fitness is selectively related to better working memory performance for male children. This investigation provides additional insight into how interventions aimed at improving fitness may influence cognitive development differentially among preadolescent children.     

Does Group CBT for Depression Do What It Says on the Tin? A Systemic Review and Meta-analysis of Group CBT for Depressed Adults (2000–2016)

The present study aimed to update previous meta-analyses of gCBT, and focus specifically on recent studies in which the Beck Depression Inventory (BDI) was used to assess outcome. PsycINFO, PubMed, EMBASE, and Cochrane were searched for eligible studies. Both randomized controlled trials (RTC, k = 9) and non-RTCs (k = 1) published since 2000 were included. On the BDI large significant effect sizes were found for gCBT compared with treatment as usual (TAU, d = 4.64), wailing list controls (WLC, d = 1.20), and both of these comparison conditions combined with studies of well-defined alternative treatments (ALT, d = 1.61). On the BDI a moderate effect size (d = 0.53) was found for comparisons of gCBT and ALT groups. gCBT also had large and significant effects on depressive cognition assessed with the Automatic Thoughts Questionnaire and the Dysfunctional Attitudes Scale compared with WLC and ALT comparison groups (d = 2.66). This meta-analysis shows that gCBT is a robust intervention for depression in adults.     

Self‐esteem and its relationship to bullying behaviour

From the rapidly growing literature on bullying, it is increasingly recognised that peer relationship problems as manifested in being bullied are associated with low self‐esteem. However, the literature on self‐esteem in relation to children who bully others is controversial. The objective of this paper is to elucidate further our understanding of the relationship between self‐concept and bullying behaviour. Data from a nationwide study of bullying behaviour carried out in Ireland during 1993‐1994 have been reviewed. The relevant results from 8,249 school children aged 8 to 18 years are presented. The paper examines the global and dimensional nature of self‐esteem and how it relates to children and adolescents who either have been victimised or bullied others. A distinction is made between “pure victims,” “pure bullies,” and children and adolescents who were both bullied and who bullied others. In other words, pure victims were those who had not bullied others, and pure bullies had not themselves been bullied. Those who were both bullied and bullied others were subdivided further into victims who bully occasionally, sometimes, and frequently and bullies who are victimised, occasionally, sometimes, and frequently. The results show that children of both primary and post‐primary age who were involved in bullying as victims, bullies, or both had significantly lower global self‐esteem than did children who had neither bullied nor been bullied. However, the pure bullies, in contrast to the pure victims, placed the same value on their physical attractiveness and attributes and on their popularity as did their peers who had not bullied others or been bullied. The bully‐victims of all ages had the lowest self‐esteem of the subgroups in the study. Also, the more frequently children were victimised or bullied others, the lower was their global self‐esteem. The typology and frequency of bullying and the age of the children when they were involved in bullying influenced the status of the specific domains of self‐esteem. There were, e.g., significant differences in anxiety between the pure bullies of post‐primary age and their peers who had not bullied others or been bullied. The post‐primary children who bullied most frequently were the least anxious. The results indicate that high self‐esteem protects children and adolescents from involvement in bullying. Thus, in view of the strong relationship between self‐esteem and bullying that has been found in the present paper, it is recommended that top priority be given by parents and teachers to preventing and reducing feelings of poor self‐worth among children and adolescents. Aggr. Behav. 27:269–283, 2001. © 2001 Wiley‐Liss, Inc.     

Associative learning improves visual working memory performance

The ability to remember visual stimuli over a short delay period is limited by the small capacity of visual working memory (VWM). Here the authors investigate the role of learning in enhancing VWM. Participants saw 2 spatial arrays separated by a 1-s interval. The 2 arrays were identical except for 1 location. Participants had to detect the difference. Unknown to the participants, some spatial arrays would repeat once every dozen trials or so for up to 32 repetitions. Spatial VWM performance increased significantly when the same location changed across display repetitions, but not at all when different locations changed from one display repetition to another. The authors suggest that a major role of learning in VWM is to mediate which information gets retained, rather than to directly increase VWM capacity.     

Patient-Informed Treatment Development of Behavioral Smoking Cessation for People With Schizophrenia

The objective of this study was to use qualitative methodology to tailor and refine an existing smoking cessation intervention for the population of people who use cigarettes and are diagnosed with schizophrenia, schizoaffective, or psychotic disorder. Successive cohort design methodology was used to iteratively modify the treatment in response to qualitative participant, therapist, and consultant feedback on the intervention. Qualitative methodology for participant feedback included analysis of semistructured interviews with participants, visualization of app utilization data, and stakeholder feedback from study therapists and consultants. Using the successive cohort design, a tailored multicomponent mobile health smoking cessation intervention was developed. The intervention included mobile contingency management (i.e., financial compensation for confirmed abstinence from smoking), pharmacotherapy for smoking cessation, cognitive-behavioral counseling sessions, and the Stay Quit app for relapse prevention. Two cohorts (N = 13) were completed in the study; after each cohort, the treatment protocol was revised. The intervention is described, as well as the qualitative findings from each cohort and subsequent changes made to the intervention based upon patient and provider feedback. Metrics of patient engagement included treatment adherence (40% in Cohort 1 and 63% in Cohort 2). Both participants and therapists reported that the intervention was helpful. Over one third of participants self-reported abstinence at posttreatment. Since qualitative methodology is often underutilized in mental health treatment development, this study demonstrates the utility of the successive cohort design for treatment development of behavior change interventions for at-risk, vulnerable populations.