People who are in close relationships tend to do and like the same things, a phenomenon termed the "homophily principle." The present research probed for evidence of the homophily principle in 4- to 6-year-old children. Across two experiments, participants (N = 327; 166 girls, 161 boys; located in the Midwestern United States) were asked…

Numerous headlines have proclaimed just how far behind students have fallen since the COVID-19 pandemic first shuttered schools in March 2020. Many of these headlines report test score changes in "months (or years) of learning" from recent studies. Despite the accessibility (and therefore popularity) of the "months of learning"…

Gender-stereotyped beliefs develop early in childhood and are thought to increase with age based on prior research that was primarily carried out in Western cultures. Little research, however, has examined cross-cultural (in)consistencies in the developmental trajectory of gender-stereotyped beliefs. The present study examined implicit gender-toy…

In this longitudinal study, we investigated the factor structure and stability of early-life temperament in a German sample, using three measures developed within Rothbart's psychobiological approach. Temperament was measured using the Infant Behavior Questionnaire Revised (IBQ-R) at the ages of 6 and 12 months, the Early Childhood Behavior…

We care about others' opinions of us and regulate our emotions to make positive impressions. This form of impression management may change during ontogeny as children become increasingly sensitive to others. To examine whether self-conscious emotions are influenced by audience presence across the lifespan, we induced embarrassment and pride in n =…

Purpose: This study aimed to investigate infants' neural responses to changes in emotional prosody in spoken words. The focus was on understanding developmental changes and potential sex differences, aspects that were not consistently observed in previous behavioral studies. Method: A modified multifeature oddball paradigm was used with emotional…

There are contentious and persistent gender differences reported in some measures of spatial skills, particularly mental rotation and, to a lesser extent, perspective-taking, which may have an impact on mathematics success. Furthermore, pathways between spatial skills and mathematics may be mediated by other cognitive factors, such as fluid…

Purpose: The main aim of the current study was to examine the longitudinal impact of verb inflectional distance on morphological awareness among Arabic-speaking children from kindergarten (K) to third grade. The study also investigated the impact of testing children in two language varieties, Spoken Palestinian dialect (SPD) and Modern Standard…

Due to limited data, we know little about the prevalence of lesbian, gay, bisexual, transgender, and queer (LGBTQ+) educators. Using the American Community Survey and Census Pulse, we examine the representation of LGBTQ+ individuals in PK-12 teaching. We find that 3.3-3.5 percent of LGBTQ+ individuals are teachers; in contrast, 4.4-4.9 percent of…

Using the data on 6.8 million individuals from the 1980, 1990, and 2000 decennial censuses and the 2010 and 2019 American Community Surveys, we document changes in living alone over the four decades across five ten-year age groups--twenty-five to thirty-four, thirty-five to forty-four, forty-five to fifty-four, fifty-five to sixty-four, and…

Background: Media exposure to mass violence incidents (MVI) is related to distress in the general public not directly exposed to these tragedies. However, limited attention has focused beyond this relationship. Objective: This cross-sectional study explores the influence of media exposure to MVI on parenting behaviors among parents of children…

The study investigated age-related trends in moral identity goal characteristics, as proposed in previous research (Krettenauer, 2022a), by modifying the Self-Importance of Moral Identity Questionnaire (Aquino & Reed, 2002). Internally and externally motivated moral identity was assessed on varying levels of abstractness for promotion…

Purpose: The purpose of this study was to examine whether older adults exhibit reduced abilities in coordinating lexical retrieval and syntactic formulation during sentence production and whether an individual's working memory capacity predicts age-related changes in sentence production. Method: A total of 124 Korean-speaking individuals (79 young…

Objectives: Characterise the circumstances associated with death during admission of adults with Down syndrome (DS) and to identify predictors of mortality. Patients and Methods: Observational study based on data on all emergent admissions of adults with DS to hospitals of the Spanish National Health System between 1997 and 2014. We analysed…

Objectives: The primary aim was to investigate the variability in language development in children aged 5-7.5 years after bilateral cochlear implantation (CI) up to the age of 2 years, and any impact of the age at implantation and additional noncognitive or anatomical disorders at implantation. Design: Data of 84 congenitally deaf children that…