Little empirical evidence exists about school-age pragmatic communication or predictors in siblings at heightened familial risk for ASD (HR) and low-risk (LR) controls. The "Pragmatic Rating Scale-School-Age" (Landa unpublished) was scored for 49 HR siblings and 18 LR controls at 8-12 years. Social-communication and language measures…

This study examined the potential of the short form of the Quantitative Checklist for Autism in Toddlers (Q-CHAT-10) to identify autism spectrum disorder (ASD) in a high-risk sibling cohort. High-risk (HR; siblings of children diagnosed with ASD) and low-risk (LR; no family history of ASD) toddlers were assessed prospectively at 18 and 24 months…

To investigate temperament as an early risk marker for autism spectrum disorder (ASD), we examined parent-reported temperament for high-risk (HR, n = 170) and low-risk (LR, n = 77) siblings at 8, 14, and 24 months. Diagnostic assessment was performed at 36 months. Group-based analyses showed linear risk gradients, with more atypical temperament…

Complex systems of inflectional morphology provide a useful testing ground for input-based language acquisition theories. Two analyses were performed on a high-density (12%) naturalistic sample of two Polish-English children's (2;0 and 3;11) and their parents' use of Polish noun inflection: first, each child's use of inflectional affixes and their…

The purpose of this study was to examine the relation between sibling relationships, life satisfaction, and the loneliness level of adolescents with regard to gender, order of birth, and sibling dyads. The study group consisted of 382 (209 female, 173 male) students in total, who were studying at high schools (regular high school, vocational high…

Adult siblings of individuals with developmental disabilities often experience higher levels of anxiety than individuals in the general population. The present study tested whether perceived parenting could mediate the relationship between attachment styles and anxiety in the sibling group compared to a control group. Little association was found…

We taught three typically developing siblings to occasion speech by implementing the Natural Language Paradigm (NLP) with their brothers with autism spectrum disorder (ASD). A non-concurrent multiple baseline design across children with ASD and sibling dyads was used. Ancillary behaviors of happiness, play, and joint attention for the children…

Research on the experiences of siblings of individuals with ASD and the quality of their sibling relationships has yielded mixed results. The present study examined the significance of parent- versus child-report of both positive and negative behaviors exhibited by siblings and their brothers and sisters with ASD within sibling dyads. Findings…

This study investigated the relationship among gender, sibling constellation, age, and young children's creativity performance in the Fluency, Imagination, Originality dimensions of creativity, as well as the developmental trajectory of their creativity performance. In total, 493 young children took the Torrance's Thinking Creatively in Action and…

The aim of the present study was to compare the adjustment difficulties of siblings of children with autism spectrum disorder, intellectual disability, and typically developing children. The statistical population of the present study included all siblings of children with autism spectrum disorder, intellectual disability, and typically developing…

The use of differences scores to assess agreement/disagreement has a long and contentious history. Laird (2020) notes, however, that developmentalists have been particularly resistant to discontinue the use of difference scores. One area of developmental science where difference scores are still in regular use is that of parental differential…

Living with a chronic health condition in the home can have a debilitating effect on the psychosocial and psychoaffective wellbeing of the entire family. This is particularly the case for healthy school aged siblings. This research investigated the perceptions and experiences of at-school support for well-siblings to evaluate its effectiveness in…

Purpose: Differences in communication development impact long-term outcomes of children with autism. Previous research has identified factors associated with communication in children with autism, but much of the variance in communication skill remains unexplained. It has been proposed that early differences in sensory responsiveness (i.e.,…

Many languages make a T/V distinction when addressing an interlocutor, and Basque also has two main levels of formality: "zuka" (formal) and "hika" (informal). The peculiarity of the Basque informal form of address "hika" is that its verbal morphology varies depending on the addressee's gender. The use of…

In present study, the school, social and activities competencies of neurotypical siblings of children with autism spectrum disorder (ASD-NTDsibs) were examined. A total of 146 children, including 66 ASD-NTDsibs and 80 children both themselves and their siblings are neurotypical (NTC-NTDsibs), participated in the study, which was designed in the…