The social validity of autism behavioral intervention has been questioned. Naturalistic Developmental Behavioral Interventions (NDBIs) attempt to address some concerns, but it is unclear whether autistic people consider NDBIs socially valid. Social validity of an NDBI, Pivotal Response Treatment (PRT), was investigated through autistic adults…

This trial examined stepped-care cognitive-behavioral treatment (CBT) among 96 autistic youth with co-occurring anxiety. Step 1 included an open trial of parent-led, therapist-guided bibliotherapy. Step 2 was family-based CBT for those who did not respond to Step 1 or maintenance for those who did. Eighteen participants (28%) who completed Step 1…

Autistic children experience high rates of mental health challenges, and links have been found between child mental health and the parent-child relationship. As parents of autistic children are often actively involved in their child's treatment, it is important to consider aspects of the parent-child relationship within this context. The present…

This article reports on a pilot study of a parent-only cognitive behavioural therapy (CBT) programme for parents of children with autism spectrum disorders (ASD) and anxiety difficulties. Twenty-one parents of anxious children with ASD (5-11 of age) completed the From Timid to Tiger intervention. Parent outcome measures were assessed at…

The purpose of this study was to identify appropriate outcome measures and assess preliminary efficacy of occupational therapy in an equine environment (OT[superscript ee] HORSPLAY) for youth with autism spectrum disorder (ASD). Twenty-four youth with ASD aged 6-13 were randomized to 10 weeks of OT[superscript ee] HORSPLAY or to a waitlist control…

The world often goes too fast for children with autism spectrum disorder (ASD) to process. We tested the therapeutic effectiveness of input slowing in children with ASD. Over 12 months, 12 children with ASD had weekly speech therapy sessions where stimuli were slowly played on a PC, while 11 age- and level-matched children with ASD had speech…

Self-harm and suicidal behaviors are prevalent among autistic adults without intellectual disability (ID). Emotion dysregulation (ED), the difficulty in modulating emotions, has been identified as an important risk factor. Dialectical behavior therapy (DBT) has been proved effective to treat ED in disorders other than autism spectrum disorder. Our…

Co-occurring psychiatric diagnoses are very common in individuals with ASD. Little is known about the effect that co-occurring psychiatric conditions may have on treatment response to CBT for children with ASD and anxiety. The present study examined the relationship between co-occurring psychiatric diagnoses and response to CBT for anxiety in…

Cognitive Behavioural Therapy (CBT) programs adapted to children with Autism Spectrum Disorder (ASD) effectively reduce anxiety when run in university clinics. Forty-nine children aged 8-14 years participated in a waitlist controlled study in a general child psychiatric hospital setting. Post-treatment 30% of the children were free of their…

The present study examined language trajectories and placement outcomes for children with autism spectrum disorder (ASD) receiving early intensive behavioral intervention (EIBI). Language measures were collected at baseline and 6, 12, 18, 24, and 36 months or until exit from EIBI in 131 children with ASD. Growth models estimated overall and…

Purpose: Active engagement in one's therapy is a key contributor to successful outcomes. Research on child engagement in cognitive behaviour therapy (CBT) has largely focused on youth without autism. This longitudinal study examined multiple indicators of child engagement in relation to outcomes for autistic children who took part in CBT for…

Increased prevalence of autism spectrum disorder (ASD) has underscored the need for early intervention services. Early Intensive Behavioral Intervention (EIBI) is among the most common evidence-based approaches, however, stakeholders report significant waitlists. The effects of these delays to intervention are unknown. The purpose of this study…

Elopement is a common and dangerous concern in autism spectrum disorder (ASD). There is evidence that behavior analytic treatments can successfully treat elopement, but the research is limited due to small samples and treatment components varying across studies. The current study evaluated the feasibility of studying a manualized intervention for…

Anxiety/obsessive-compulsive disorders are common among youth with autism spectrum disorder (ASD). Two versions of cognitive behavior therapy (CBT) are effective, with some advantage for a personalized, adapted version. This study evaluated predictors and moderators of standard CBT and adapted CBT. Youth (N = 167) ages 7-13 were randomized to…

Early Intensive Behavioural Intervention (EIBI) is effective for preschoolers with autism spectrum disorder (ASD). Parental measures are rarely included in EIBI effectiveness studies, yet parental distress and lower self-efficacy are associated with poorer child outcomes. Parents of preschoolers with ASD (N = 485) were surveyed at baseline (T1),…