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Trine Lise Bakken; Jane Margrete Askeland Hellerud; Arvid Nikolai Kildahl; Ann Magritt Solheim-Inderberg; Oddbjørn Hove; Sissel Berge Helverschou – Journal of Autism and Developmental Disorders, 2025
Autistic people with intellectual disabilities appear to be at increased risk of schizophrenia. While current recommendations emphasize adapting interventions used for people with schizophrenia in general, few studies to date have investigated treatment of co-occurring schizophrenia in this specific population. To explore what interventions are…
Descriptors: Autism Spectrum Disorders, Intellectual Disability, Schizophrenia, Comorbidity
Huston, John C.; Thom, Robyn P.; Ravichandran, Caitlin T.; Mullett, Jennifer E.; Moran, Carly; Waxler, Jessica L.; Pober, Barbara R.; McDougle, Christopher J. – Journal of Autism and Developmental Disorders, 2022
The purpose of the study was to characterize repetitive phenomena in Williams syndrome (WS). The parents of 60 subjects with WS completed the Yale-Brown Obsessive Compulsive Scale (Y-BOCS) or Children's Y-BOCS, the Yale Global Tic Severity Scale, the Stereotyped Behavior Scale, and the Spence Children's Anxiety Scale--Parent Version. Nineteen…
Descriptors: Genetic Disorders, Intellectual Disability, Congenital Impairments, Repetition
Muharib, Reem; Walker, Virginia L.; Alresheed, Fahad; Gerow, Stephanie – Journal of Autism and Developmental Disorders, 2021
In this review, we summarized and meta-analyzed 35 single-case intervention studies that involved the use of multiple schedules of reinforcement with 78 individuals with intellectual and developmental disabilities. Based on Tau-U calculations, multiple schedules of reinforcement produced an overall large effect for appropriate communicative…
Descriptors: Reinforcement, Intellectual Disability, Developmental Disabilities, Scheduling
Latent Class Analysis Identifies Distinctive Behavioral Subtypes in Children with Fragile X Syndrome
Walter E. Kaufmann; Melissa Raspa; Carla M. Bann; Julia M. Gable; Holly K. Harris; Dejan B. Budimirovic; Reymundo Lozano – Journal of Autism and Developmental Disorders, 2024
Fragile X syndrome (FXS) is characterized by variable neurobehavioral abnormalities, which leads to difficulties in developing and evaluating treatments and in determining accurate prognosis. We employed a pediatric cross-sectional sample (1,072 males, 338 females) from FORWARD, a clinic-based natural history study, to identify behavioral subtypes…
Descriptors: Symptoms (Individual Disorders), Children, Genetic Disorders, Intellectual Disability
Stephenson, Kevin G.; Fenning, Rachel M.; Macklin, Eric A.; Lu, Frances; Norris, Megan; Steinberg-Epstein, Robin; Butter, Eric M. – Journal of Autism and Developmental Disorders, 2023
Behavior problems in children with autism spectrum disorder (ASD) may exacerbate parenting stress. Parenting self-efficacy and family resources may influence this association. We examined cross-sectional statistical mediation effects of parenting self-efficacy on the relationship between child behavior problems and parenting stress and…
Descriptors: Behavior Problems, Child Behavior, Autism Spectrum Disorders, Child Rearing
Kurtz, Patricia F.; Strohmeier, Craig W.; Becraft, Jessica L.; Chin, Michelle D. – Journal of Autism and Developmental Disorders, 2021
When individuals with autism and intellectual and developmental disabilities exhibit severe problem behavior, assessment and treatment are often warranted. Parents of such individuals are at high risk for developing parenting stress. In this study, 194 parents completed the Parenting Stress Index-Short Form at their child's time of admission to…
Descriptors: Behavior Modification, Behavior Problems, Anxiety, Autism
Moskowitz, Lauren J.; Will, Elizabeth A.; Black, Conner J.; Roberts, Jane E. – Journal of Autism and Developmental Disorders, 2020
There is limited research on the trajectory of restricted and repetitive behaviors (RRBs) in fragile X syndrome (FXS), with previous studies only examining males and/or examining RRBs as a unitary construct rather than delineating subtypes of RRBs. Thus, we described the trajectory of five subtypes of RRBs in 153 males and females with FXS (aged…
Descriptors: Behavior Problems, Genetic Disorders, Intellectual Disability, Congenital Impairments
Nasca, Brian C.; Lopata, Christopher; Donnelly, James P.; Rodgers, Jonathan D.; Thomeer, Marcus L. – Journal of Autism and Developmental Disorders, 2020
This study examined sex differences in externalizing and internalizing symptoms of children with ASD without intellectual disability (ID). The sample (n = 80) included 40 girls and 40 boys, ages 6-12 years, with ASD (without ID) matched on age and IQ. Externalizing and internalizing symptoms were significantly elevated for this sample (girls and…
Descriptors: Gender Differences, Behavior Problems, Children, Autism
Fielding-Gebhardt, Heather; Warren, Steven F.; Brady, Nancy C. – Journal of Autism and Developmental Disorders, 2020
Parenting children with neurodevelopmental disabilities is often challenging. Biological mothers of children with Fragile X Syndrome (FXS) may be susceptible to increased risk of mental health problems. This study examined the longitudinal relationships between maternal mental health, child challenging behaviors, and mother-child relationship…
Descriptors: Mothers, Mental Health, Child Behavior, Behavior Problems
Mackay, Jessica; Nixon, Gillian M.; Lafferty, Antony R.; Ambler, Geoff; Kapur, Nitin; Bergman, Philip B.; Schofield, Cara; Seton, Chris; Tai, Andrew; Tham, Elaine; Vora, Komal; Crock, Patricia; Verge, Charles; Musthaffa, Yassmin; Blecher, Greg; Caudri, Daan; Leonard, Helen; Jacoby, Peter; Wilson, Andrew; Choong, Catherine S.; Downs, Jenny – Journal of Autism and Developmental Disorders, 2022
Prader-Willi syndrome (PWS) is a rare genetic disorder characterised by neurodevelopmental delays, hyperphagia, difficulties with social communication and challenging behaviours. Individuals require intensive supervision from caregivers which may negatively affect caregiver quality of life. This study used data collected in the Australasian PWS…
Descriptors: Caregivers, Genetic Disorders, Intellectual Disability, Developmental Disabilities
Srivastava, Siddharth; Clark, Bennett; Landy-Schmitt, Colleen; Offermann, Elizabeth A.; Kline, Antonie D.; Wilkinson, Samuel T.; Grados, Marco A. – Journal of Autism and Developmental Disorders, 2021
Cornelia de Lange syndrome (CdLS) is associated with repetitive and self-injurious behaviors (RBs, SIB). Evaluating children with CdLS, this study: (1) characterizes the spectrum of RBs; (2) characterizes the impact and severity of RBs including SIB; (3) describes how age and adaptive functioning relate to RBs including SIB. Fifty children…
Descriptors: Behavior Problems, Self Destructive Behavior, Genetic Disorders, Intellectual Disability
Kawaoka, Naomi; Ohashi, Kei; Fukuhara, Satomi; Miyachi, Taishi; Asai, Tomoko; Imaeda, Masayuki; Saitoh, Shinji – Journal of Autism and Developmental Disorders, 2022
In March 2020, many schools were closed to prevent the spread of COVID-19 in Japan, and it is predicted that many children, especially those with neurodevelopmental disorders (NDDs), will be affected emotionally and behaviorally. Here, we examined the impact of school closures due to COVID-19 on school-aged children with NDDs using the Child…
Descriptors: COVID-19, Pandemics, Foreign Countries, School Closing
Fodstad, Jill C.; Kerswill, Stephanie A.; Kirsch, Alexandra C.; Lagges, Ann; Schmidt, Jonathan – Journal of Autism and Developmental Disorders, 2021
Noise hypersensitivity is a poorly understood symptom of Autism Spectrum Disorder (ASD). For some, problem behaviors co-occur with the aversive noise. Limited literature exists on treating noise hypersensitivity; however, noise hypersensitivity may be related to a specific phobia. This case study utilizes modified Cognitive Behavioral Therapy…
Descriptors: Autism, Pervasive Developmental Disorders, Acoustics, Perceptual Impairments
Hirota, Tomoya; Deserno, Marie; McElroy, Eoin – Journal of Autism and Developmental Disorders, 2020
Irritability and aggression (IA) are highly prevalent in individuals with autism spectrum disorder (ASD). Although clinical correlates of IA in this population have been previously examined, findings from existing studies capturing symptoms as a set of latent variables do not fully explain meaningful associations between the symptoms themselves.…
Descriptors: Aggression, Antisocial Behavior, Autism, Pervasive Developmental Disorders
Rivard, Mélina; Morin, Diane; Coulombe, Patrick; Morin, Marjorie; Mello, Catherine – Journal of Autism and Developmental Disorders, 2023
During the diagnostic evaluation period for autism or intellectual disability (ID), families of young children are at risk for poor adjustment. The present study aimed to document family quality of life (FQOL), along with associated risk and protective factors, during this critical step of families' services trajectory. FQOL was measured in a…
Descriptors: Young Children, Family Relationship, Quality of Life, Risk