Although evidence has suggested that social skills interventions yield social and symptom benefits for autistic children, significant variability in outcomes between studies has raised important questions regarding efficacy and moderators of intervention outcomes (i.e., which interventions yield positive effects and which autistic children are…

Background: Pivotal response treatment (PRT) is suggested to be an effective treatment for children with autism spectrum disorder (ASD). Objectives: We aimed to compile evidence examining the effectiveness of PRT on social communication, social interaction, and repetitive behavior for children with ASD. Methods: We performed a systematic and…

Poorer language ability has been shown to predict the development of externalizing behavior problems such as aggression and conduct problems. However, the developmental process that links poorer language ability to externalizing problems is unclear. The present study examined (a) whether within-child changes in language ability predict…

A relatively large number of children with autism spectrum disorder (ASD) exhibit disruptive behavioral problems. While accumulating data have shown behavioral parent training programs to be efficacious in reducing disruptive behaviors for this population, there is a dearth of literature examining the impact of such programs across the range of…

The primary aim of this study was to evaluate and compare alternative modalities and stimuli used to measure receptive vocabulary skills in autistic children who are minimally verbal. This study systematically compared participants' outcomes on three different receptive vocabulary assessment conditions: a low-tech assessment that used a stimulus…

Behavioral inflexibility (BI) has been highlighted to occur across genetic and neurodevelopmental disorders. This study characterized BI in two common neurogenetic conditions: Fragile X syndrome (FXS) and Down syndrome (DS). Caregivers of children with FXS (N = 56; with ASD = 28; FXS only = 28) and DS (N = 146) completed the Behavioral…

Previous research by Williams, Siegel and Mazefsky (2018) investigated the relationship between verbal abilities and problem behaviors using data from the Autism Inpatient Collection (AIC). This research found a weak and inconsistent association between verbal abilities and problem behavior severity; however, adapting/coping scores were…

The purpose of this study is to examine the bidirectional relationship between children's language development and challenging behaviors as well as the moderating roles of gender and race/ethnicity. We conducted a number of structural equation modeling analyses with a national representative sample (N = 2,462) of Head Start children from the 2014…

Research suggests that children with behavioural difficulties exhibit "positive illusory bias" (PIB), in which they overestimate their competencies leading to a perception of self that is more positive than the perceptions held by their peers, parents or teachers. However, research to date has focused on children of elementary school age…

Parent-Child Interaction Therapy is an empirically based, behavioral parent training program for young children exhibiting disruptive behaviors. Parent--Child Interaction Therapy shows promise for treating disruptive behaviors in children with autism spectrum disorder. Treatment processes (i.e. treatment length and homework compliance), parenting…

This study examined the relations between problem behaviors and early learning outcomes among 138 children in dual-language pre-K programs who were identified at the beginning of the school year to be at risk for difficulties in early language and literacy development. Children's expressive and receptive vocabulary, listening comprehension, and…

This community effectiveness trial examined the feasibility and efficacy of a comprehensive psychosocial treatment for 28 children, aged 7 to 10 years with high-functioning autism spectrum disorders (HFASDs). Treatment included instruction and therapeutic activities targeting social skills, face-emotion recognition skills, interest expansion, and…

Aim: To determine if the benefit of early confirmation of permanent childhood hearing impairment (PCHI) on children's receptive language development is associated with fewer behavioural problems. Method: Follow-up of a total population cohort of 120 children with PCHI of moderate or greater severity (greater than or equal to 40 decibels relative…

The goal of this study was to develop an empirically derived classification system for selective mutism (SM) using parent-report measures of social anxiety, behavior problems, and communication delays. The sample consisted of parents of 130 children (ages 5-12) with SM. Results from latent profile analysis supported a 3-class solution made up of…

This study examined early childhood characteristics of 82 11-year- old boys with either reading disabilities (RD) only, attention-deficit/hyperactivity disorder (ADHD) only, or both conditions. At ages 3 and 5 the RD only boys had performed poorly on measures of receptive and expressive language, whereas the RD/ADHD groups performed poorly on…