We propose and test the , which predicts that individuals calibrate their self-assessments in response to the confidence others display in their social group. Six studies that deploy a mix of correlational and experimental methods support this hypothesis. Evidence indicates that individuals randomly assigned to collaborate in laboratory dyads converged on levels of overconfidence about their own performance rankings. In a controlled experimental context, observing overconfident peers causally increased an individual's degree of bias. The transmission effect persisted over time and across task domains, elevating overconfidence even days after initial exposure. In addition, overconfidence spread across indirect social ties (person to person to person), and transmission operated outside of reported awareness. However, individuals showed a selective in-group bias; overconfidence was acquired only when displayed by a member of one's in-group (and not out-group), consistent with theoretical notions of selective learning bias. Combined, these results advance understanding of the social factors that underlie interindividual differences in overconfidence and suggest that social transmission processes may be in part responsible for why local confidence norms emerge in groups, teams, and organizations. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
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Front Psychol
December 2024
Guilin Tobacco Company of Guangxi Zhuang Autonomous Region, Guilin, China.
Background: Smoking is highly prevalent among HIV-infected individuals and is associated with high morbidity and mortality. Studies on smoking among HIV-infected individuals in China, especially compared to uninfected individuals, are scarce.
Purpose: This study aimed to investigate and compare the prevalence and factors associated with smoking between HIV-infected and uninfected men in Guilin, China.
Sci Rep
January 2025
Gunma University, 1-5-1 Tenjin-Cho, Kiryu, 376-8515, Japan.
With the emergence of COVID-19 variants and new viruses, it remains uncertain when the next pandemic will occur. A lockdown is considered the last resort to halt the spread of infection; however, it causes significant economic and social damage. Therefore, exploring less harmful alternatives during such scenarios is crucial.
View Article and Find Full Text PDFPLoS One
January 2025
Department of Genetics, National Institute of Medical Sciences and Nutrition Salvador Zubirán (INCMNSZ), Mexico City, Mexico.
Myelomeningocele (MMC) is the most severe and disabling form of spina bifida with chronic health multisystem complications and social and economic family and health systems burden. In the present study, we aimed to investigate the genetic risk estimate for MMC in a cohort of 203 Mexican nuclear families with discordant siblings for the defect. Utilizing a custom Illumina array, we analyzed 656 single nucleotide polymorphisms (SNPs) of 395 candidate genes to identify a polygenic risk profile for MMC.
View Article and Find Full Text PDFPLoS One
January 2025
Neglected Tropical Diseases Division, Federal Ministry of Health, Abuja, Nigeria.
Over the past decade, Anambra State, Nigeria, has implemented mass administration of medicines (MAMs) to combat soil-transmitted helminthiasis (STH), a significant public health challenge in low-income regions. Nevertheless, these efforts have predominantly focused on pre-school and school-aged children, leaving a notable gap in understanding STH infection rates and the efficacy of these campaigns among secondary school adolescents, who have been excluded from this initiative. Our study aimed to address this critical knowledge gap by assessing soil-transmitted helminthiasis (STH) prevalence and contextual factors hindering effective control among adolescents in Anambra State, Nigeria.
View Article and Find Full Text PDFBMC Public Health
January 2025
ICAP, P.O. Box 34358, Lusaka, Zambia.
Background: Rwanda has made remarkable progress in scaling up HIV testing, treatment, and healthcare services. Recent data show that 95% of people living with HIV (PLWH) were aware of their status, 97.5% of them are on antiretroviral therapy (ART), and 98% of those who are on treatment have achieved viral suppression.
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