Background: Sedentary behaviour (SB) among adults with Down syndrome (DS) may differ based on personal or environmental factors. Objective: Investigate differences in SB levels and patterns of adults with DS based on sex, age, and residence-type across weekdays and weekends. Methods: Thirty-four adults with DS (15 men; 37 ± 12 years) underwent…

This study highlighted how particular intersections of personal characteristics were related to Motivation to Learn (MtL) among adults. MtL is a prerequisite for adult education and training participation. However, little is known about MtL across subpopulations due to several methodological limitations. This study developed a national profile of…

Objective: To provide additional information about clinical features associated with adult ADHD in patients diagnosed in childhood compared to those first diagnosed in adulthood. Method: We stratified a sample of adults with ADHD into patients diagnosed in childhood versus adulthood and compared demographic and clinical characteristics. Results:…

Purpose: We extended our earlier study on normative growth curves for intelligibility development in typical children from 30 to 119 months of age. We also determined quantile-specific age of steepest growth and growth rates. A key goal was to establish age-specific benchmarks for single-word and multiword intelligibility. Method: This…

Personal networks undergo changes in structure and composition throughout the life span, adapting to developmental transitions and changing circumstances in a dynamic way. This study examines stability and change in social convoys from childhood to adulthood and variation in trajectories of convoy characteristics by gender and race. Multilevel…

Studies have indicated that the level of autonomy of people with intellectual disability is influenced by personal and environmental factors. The aims of this cross-sectional and correlational study were to determine a correlation between the level of autonomy in adults with intellectual disability, on the one hand, and specific personal and…

Autistic adults experience high rates of unemployment, yet research investigating what predicts employment success produces inconsistent results. By utilising longitudinal person-oriented analyses, this study aimed to identify employment trajectories of autistic adults to better understand what may predict stable autistic employment. Participants…

Background: Executive functions (EF) impairments have long been observed in children and youths with autism spectrum disorders (ASD). Until very recently, little attention has been paid to examine EF profiles of adults with ASD. Given the importance of EF to cope with the demands of daily life and participate in society (e.g. maintaining an…

Background: A priori assumptions about specific behavior in test items can be used to process log data in a rule-based fashion to identify the behavior of interest. In this study, we demonstrate such a top-down approach and created a process indicator to represent what type of information processing (flimsy, breadth-first, satisficing, sampling,…

Trajectories of perceived stress from the transition to adulthood (age 25), during young adulthood (age 32), and into midlife (ages 43 and 50) were examined with four waves of longitudinal survey data (N = 688; 49% female, 37% with a university degree, 86% White). We explored how between- and within-person variation in perceived stress was…

This study investigated what psychological and social factors predict 'perceived nativelikeness' in late second language (L2) learners of French (L1 Swedish) (N = 62) with a minimum length of residence (LOR) of 5 years in France. The included factors were: language aptitude (LLAMA), acculturation (VIA), personality (MPQ), target language…

Amid the COVID-19 pandemic, vaccine hesitancy is believed to be among the top global health threats. U.S. Latinos have disproportionately been affected by the pandemic and have higher COVID-19 vaccine hesitancy. This study applied the Vaccine Hesitancy Determinants Matrix to understand COVID-19 vaccine hesitancy in a Latino agricultural community.…

Research has shown lower rates of employment and independent living in adults with autism. Many of these findings are based on cross-sectional studies, predominantly involving male participants. In a 6-year longitudinal study, we examined determinants of psychosocial outcomes in 917 adults with autism spectrum disorder (425 men, 492 women, mean…

Past research has highlighted some differences in how sarcasm is interpreted by different groups of individuals as well as biases in individuals' expectations regarding who is more likely to use it (e.g., occupation, gender). However, examinations of patterns of sarcasm production have been much less frequent. The current research extends past…

Lack of social interaction is associated with a heightened sense of loneliness and, in turn, poorer psychological well-being. Despite the prevalence of communicating with others virtually even when physically alone, whether the social interaction--loneliness--well-being relationship is different between face-to-face and virtual interactions and…