Research in Developmental Disabilities最新文献

{"title":"Associations between receptive and expressive vocabulary and early literacy in young students with intellectual disabilities using AAC","authors":"Line Britt Ulriksen ,&nbsp;Marthe Bilet-Mossige ,&nbsp;Kenneth Larsen ,&nbsp;Anders Nordahl-Hansen","doi":"10.1016/j.ridd.2026.105239","DOIUrl":"10.1016/j.ridd.2026.105239","url":null,"abstract":"<div><h3>Purpose</h3><div>This study examined the associations between receptive and expressive vocabulary and early literacy skills (i.e., phonological awareness and letter-sound knowledge) among 39 students aged 6–14 years with intellectual disabilities, autism, and/or Down syndrome who use augmentative and alternative communication (AAC). Receptive and expressive vocabulary are identified as a key risk factor for developing reading skills in students with intellectual disabilities who use AAC.</div></div><div><h3>Methods</h3><div>Spearman’s correlation analyses and generalized linear models were conducted throughout this non-experimental investigation to examine the association between receptive and expressive vocabulary, phonological awareness (sound blending and initial sound recognition), and letter-sound knowledge.</div></div><div><h3>Results</h3><div>Findings revealed a significant correlation between expressive vocabulary (i.e., words children can use in speech) and both letter-sound knowledge and sound blending, contrary to prior research. Additionally, students’ receptive and expressive vocabulary showed no correlation with their early literacy skills. Binomial Generalized Linear Models (mixed-effects models) highlighted the importance of receptive vocabulary in early literacy development. Furthermore, looking at the differences within the sample, students with autism and intellectual disability requiring AAC had a higher negative probability of maximum scores in early literacy skills.</div></div><div><h3>Conclusions</h3><div>These findings deepen understanding of how the correlations between receptive and expressive vocabulary relate to early literacy skills. This may contribute to more targeted interventions and provide implications for practitioners and their teaching within receptive and expressive vocabulary and early literacy components, which will benefit this population in further reading development.</div></div>","PeriodicalId":51351,"journal":{"name":"Research in Developmental Disabilities","volume":"169 ","pages":"Article 105239"},"PeriodicalIF":2.6,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146078193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preliminary psychometric evaluation of the Greek little developmental coordination disorder questionnaire (LDCDQ-GR)","authors":"Tania Kalaitzi ,&nbsp;Pavlos Kitixis ,&nbsp;Dimitrios Zafeiriou ,&nbsp;Ioannis Poulis ,&nbsp;George Paras","doi":"10.1016/j.ridd.2026.105236","DOIUrl":"10.1016/j.ridd.2026.105236","url":null,"abstract":"<div><h3>Background</h3><div>Developmental Coordination Disorder (DCD) is a multifactorial motor disorder that significantly impacts a child’s activities of daily living and academic skills. Identifying signs of DCD early is essential to enable timely support and reduce the risk of long-term difficulties.</div></div><div><h3>Aims</h3><div>This cross-sectional study aimed to further investigate the psychometric properties of the Greek version of the Little Developmental Coordination Disorder Questionnaire (LDCDQ) by carrying out appropriate analyses in a convenience sample of 3- to 5- year old children in Greece.</div></div><div><h3>Methods</h3><div>A total of 362 preschool children aged 3–5 years old from 39 municipal kindergartens in Thessaloniki, Greece participated in this study. Parents filled out the Greek LDCDQ. Internal consistency of the LDCDQ-GR was determined by Cronbach’s alpha. Construct validity was investigated using factor analysis</div></div><div><h3>Results</h3><div>Internal consistency of the LDCDQ-GR was 0.88. Factor analysis resulted in three factors (Locomotor, Fine motor and General Coordination skills). No effects of age (H(2) = 3.93, p = 0.14, η² = 0.005) and gender (H(1) = 2.75, p = 0.09, η² = 0.005) were depicted for the LDCDQ-GR final score.</div></div><div><h3>Conclusion</h3><div>LDCDQ-GR appears to be a reliable and well-structured questionnaire for identifying preschool-aged (3–5 years old) children in Greece who may be at risk for DCD.</div></div>","PeriodicalId":51351,"journal":{"name":"Research in Developmental Disabilities","volume":"169 ","pages":"Article 105236"},"PeriodicalIF":2.6,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146078194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sleep in children with spinal muscular atrophy and their caregivers: Exploring sleep problems and the need for care","authors":"Ilse Margot van Rijssen ,&nbsp;Sanne Rodenburg ,&nbsp;Mattijs Alsem ,&nbsp;Raquel Hulst ,&nbsp;Jan Willem Gorter ,&nbsp;Irene Oude Lansink ,&nbsp;Ludo van der Pol ,&nbsp;Esther Veldhoen ,&nbsp;Olaf Verschuren","doi":"10.1016/j.ridd.2026.105238","DOIUrl":"10.1016/j.ridd.2026.105238","url":null,"abstract":"<div><div>Sleep-disordered breathing in children with spinal muscular atrophy (SMA) is well recognized, yet little is known about everyday, non-respiratory sleep problems and their impact on caregivers. The purpose of this study is to describe the caregiver-reported frequency and type of sleep problems in children with spinal muscular atrophy (SMA) and to evaluate the sleep satisfaction of their child and their own sleep. Furthermore, we assessed the relationship between child and caregiver sleep. Finally, we compared sleep outcomes of children with SMA to that of typically developing (TD) children and their caregivers. Fifty-one children with SMA (age range: 0–16), 287 TD children (age range: 0–16) and their caregivers participated in this cross-sectional, exploratory observational questionnaire study. Night-time waking, snoring, pain or discomfort and daytime fatigue were more common in children with SMA. Caregivers of children with SMA were less satisfied about their child’s and own sleep, and more often reported feeling sleep deprived. We recommend regular assessment of sleep in children with SMA and their families in pediatric healthcare practice.</div></div>","PeriodicalId":51351,"journal":{"name":"Research in Developmental Disabilities","volume":"169 ","pages":"Article 105238"},"PeriodicalIF":2.6,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146078191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The relationship between social media use and adolescent inattention and impulsivity: A systematic review","authors":"Rosa Angela Fabio ,&nbsp;Giulia Picciotto","doi":"10.1016/j.ridd.2026.105237","DOIUrl":"10.1016/j.ridd.2026.105237","url":null,"abstract":"<div><h3>Objective</h3><div>This systematic review aims to evaluate the association between social media use (SMU) and ADHD-related outcomes—primarily inattention and impulsivity—among adolescents aged 10–19 years.</div></div><div><h3>Methods</h3><div>A systematic literature search was conducted across PsycINFO, Scopus, PubMed, Cochrane Library, and Embase in June 2025. Search terms included: (\"social media\" OR \"social network\" OR \"social networking site\" OR Instagram OR TikTok OR Facebook) AND (adolescen* OR teen* OR youth) AND (ADHD OR \"attention deficit\" OR inattention OR impulsivit* OR hyperactiv*). Eligible studies included both general population samples and adolescents diagnosed with attention-deficit/hyperactivity disorder (ADHD). Filters were applied to include articles published in English between 2015 and 2025. Although a formal risk of bias assessment was not conducted, study characteristics and methodological variability were qualitatively evaluated.</div></div><div><h3>Results</h3><div>Twenty-five studies met the inclusion criteria and were synthesized. Across both clinical and non-clinical samples, most studies reported a significant association between problematic social media use and ADHD-related traits or symptoms, particularly inattention. Evidence for associations with impulsivity was also observed, whereas findings related to hyperactivity were less consistent and less frequently examined. However, considerable heterogeneity in study design, measurement tools, and operationalization of SMU limited direct comparability and synthesis.</div></div><div><h3>Conclusion</h3><div>Problematic social media use appears to be associated with increased inattention- and impulsivity-related outcomes in adolescents. While current evidence suggests a meaningful link, the predominance of cross-sectional designs limits conclusions about directionality. Future research should adopt longitudinal and experimental approaches, employ standardized and conceptually precise measures of social media use, and clarify the role of specific ADHD dimensions.</div></div>","PeriodicalId":51351,"journal":{"name":"Research in Developmental Disabilities","volume":"169 ","pages":"Article 105237"},"PeriodicalIF":2.6,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146078192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Navigating healthcare among Canadians with ASD during transitions to adulthood: How does it look like from the perspectives of stakeholders?","authors":"Parisa Ghanouni,&nbsp;Paige Kavanaugh","doi":"10.1016/j.ridd.2026.105222","DOIUrl":"10.1016/j.ridd.2026.105222","url":null,"abstract":"<div><h3>Introduction</h3><div>The transition to adulthood presents specific challenges for individuals with autism spectrum disorder (ASD) and their parents, particularly in navigating healthcare systems and adapting routines. Despite the importance of this transition, effectively navigating the healthcare system remains difficult and there is limited information specifically on healthcare navigation. This study aims to address this gap by exploring the experiences of stakeholders to gain a comprehensive understanding and identify crucial components for successfully navigating healthcare systems.</div></div><div><h3>Methods</h3><div>In-depth interviews were conducted with 20 participants, including 6 youth with ASD, 10 parents of youth with ASD, and 4 service providers from Canadian provinces. The interviews were analyzed thematically to extract meaningful insights.</div></div><div><h3>Results</h3><div>Thematic analysis revealed three main themes essential to navigating the healthcare system: (a) information sharing, emphasizing the significance of accessible and comprehensive information exchange regarding healthcare resources; (b) community-based programs, underscoring the role of community resources and support networks in facilitating healthcare access and transition; and (c) healthcare coordination, highlighting the necessity of tailored and ongoing support mechanisms to assist individuals with ASD during the transition process.</div></div><div><h3>Conclusion</h3><div>This study contributes to the existing literature on the transition to adulthood for individuals with ASD by identifying key factors influencing healthcare system navigation. Recognizing and addressing these factors are vital due to their profound impact on youth and their families. The findings highlight the importance of accessing navigational services to facilitate a successful transition of healthcare systems and can inform the development of navigational support interventions.</div></div><div><h3>Contribution to the literature</h3><div><ul><li><span>•</span><span><div>There is limited information about how individuals with ASD navigate healthcare services as they transition to adulthood.</div></span></li></ul><ul><li><span>•</span><span><div>This study explored experiences of individuals with ASD, their parents and service providers during transition to adulthood.</div></span></li></ul></div><div><ul><li><span>•</span><span><div>This project highlights how best we can support individuals with autism during navigating healthcare services.</div></span></li></ul></div></div>","PeriodicalId":51351,"journal":{"name":"Research in Developmental Disabilities","volume":"169 ","pages":"Article 105222"},"PeriodicalIF":2.6,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146078719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Accelerometer-measured physical activity among children and adolescents with and without neurodevelopmental disorders: A systematic review and meta-analysis","authors":"Xiao Liang ,&nbsp;Raffy C.F. Chan ,&nbsp;Justin A. Haegele ,&nbsp;Sean Healy ,&nbsp;Richard H. Xu ,&nbsp;Chang Liu ,&nbsp;Ming Chen ,&nbsp;Minghui Li ,&nbsp;Hui Zhang ,&nbsp;Cindy H.P. Sit ,&nbsp;David H.K. Shum","doi":"10.1016/j.ridd.2026.105233","DOIUrl":"10.1016/j.ridd.2026.105233","url":null,"abstract":"<div><h3>Purpose</h3><div>Physical inactivity is a health concern for children and adolescents with neurodevelopmental disorders (NDDs) as it directly increases their risk of developing various health problems. Evidence on differences in accelerometer-assessed physical activity between children and adolescents with and without NDDs is inconclusive. And age- and body mass index (BMI)-related effects on physical activity remain unclear.</div></div><div><h3>Methods</h3><div>The systematic literature searches were performed in 6 databases up to March 2025. Methodological quality was evaluated by the Newcastle–Ottawa Scales. Data were pooled using a random-effects model. Hedges’ <em>g</em> was used to express the effect size index with 95 % confidence interval (CI). Meta-regression on age and BMI was also performed to investigate the potential moderating effects.</div></div><div><h3>Results</h3><div>Out of the 2167 studies initially identified, 28 were included in the analysis, which comprised total physical activity (TPA), moderate-to-vigorous physical activity (MVPA), and light physical activity (LPA) included in the meta-analysis, respectively. These studies involved 1060 children and adolescents with NDDs and 1820 without, aged 6.6–16.9 years. A small-to-moderate effect size exists for the difference in TPA (g=-0.299) and MVPA (g=-0.479) between children and adolescents with and without NDD, particularly indicating a difference in 12.7 min of MVPA daily. The difference in LPA was not significant (<em>g</em>=0.450, p = 0.125). The decline in MVPA with age was more pronounced in those with NDDs, and the difference in MVPA was smaller for those with lower BMI.</div></div><div><h3>Conclusion</h3><div>The variation in MVPA differences by age and BMI highlights the need to develop better physical activity habits and reduce these disparities for children and adolescents with NDDs.</div></div>","PeriodicalId":51351,"journal":{"name":"Research in Developmental Disabilities","volume":"169 ","pages":"Article 105233"},"PeriodicalIF":2.6,"publicationDate":"2026-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146038816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Participation patterns and associated factors in children and adolescents with autism spectrum disorder: A nationwide population study","authors":"Che-Yu Lin ,&nbsp;Lin-Ju Kang ,&nbsp;Hua-Fang Liao ,&nbsp;Pou-Leng Cheong ,&nbsp;Chia-Feng Yen ,&nbsp;Tsan-Hon Liou ,&nbsp;Yen-Tzu Wu ,&nbsp;Pei-Ying Yang","doi":"10.1016/j.ridd.2026.105232","DOIUrl":"10.1016/j.ridd.2026.105232","url":null,"abstract":"<div><h3>Background</h3><div>Participation is central to development and quality of life in autism spectrum disorder (ASD). Most evidence derives from Western populations, and little is known about how body function and environmental components of the International Classification of Functioning, Disability and Health (ICF) shape participation across developmental stages in East Asia.</div></div><div><h3>Purpose</h3><div>To examine participation patterns and associated factors among Taiwanese children and adolescents with ASD using a national dataset.</div></div><div><h3>Methods</h3><div>Data were drawn from the Taiwan Databank of Persons with Disabilities, including 5190 children (aged 6–12) and 3603 adolescents (aged 13–17) with clinically confirmed ASD. Participation frequency and independence across six domains were assessed using the Functioning Scale of the Disability Evaluation System–Child version (FUNDES-Child). Body function and environmental factors were evaluated with standardized subscales. Analysis of covariance compared age groups, and multiple regression identified predictors. Robustness was tested using E-values.</div></div><div><h3>Results</h3><div>Children showed lower participation frequency, whereas adolescents had reduced independence in social domains. Mental and speech impairments were the strongest limiting factors, while physical and sensory impairments were less influential. Environmental supports, particularly caregiver assistance, social attitudes, and accessibility, were significant predictors. E-values indicated moderate robustness for daily living and mobility (3.11 – 3.47), very high robustness for environmental assistance and social attitude supports (27.7).</div></div><div><h3>Conclusion</h3><div>Findings highlight the interplay of functional limitations and contextual supports. E-value analyses confirm the robustness of communication-related impairments and environmental supports, suggesting interventions in these domains are most reliable for enhancing participation in East Asian children and adolescents with ASD.</div></div>","PeriodicalId":51351,"journal":{"name":"Research in Developmental Disabilities","volume":"169 ","pages":"Article 105232"},"PeriodicalIF":2.6,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146038819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Latent profiles of depression and post-traumatic growth and their associations with social support and religious participation in mothers of children with developmental disabilities in South Korea","authors":"Soo Kyung Park ,&nbsp;Haenim Lee","doi":"10.1016/j.ridd.2026.105235","DOIUrl":"10.1016/j.ridd.2026.105235","url":null,"abstract":"<div><h3>Background</h3><div>Mothers of children with developmental disabilities (DD) experience chronic and cumulative stress, yet many also report positive psychological changes such as post-traumatic growth (PTG). Few studies have examined how depression and PTG co-occur as distinct mental-health patterns or how psychosocial resources influence these profiles. This study identified latent profiles of depression and PTG among Korean mothers of children with DD and examined whether social support and religious participation predicted profile membership.</div></div><div><h3>Method</h3><div>A total of 488 mothers of children with DD participated in a survey conducted in Seoul and surrounding areas (2017–2018). Measures included the Post-Traumatic Growth Inventory, PHQ-9 depression scale, perceived informal support, formal service use, and religious participation. Latent profile analysis (LPA) was used to identify distinct psychological profiles, followed by multinomial logistic regression to examine predictors of class membership.</div></div><div><h3>Results</h3><div>A three-class solution best represented the data<em>: (1) Low PTG/High Depression</em> (13.4 %), <em>(2) Moderate PTG/Moderate Depression</em> (47.9 %), <em>and (3) High PTG/Low Depression</em> (38.6 %). Higher levels of family support, formal support services for caregivers, and active religious participation significantly increased the likelihood of belonging to the High PTG/Low Depression class. Self-rated health also differentiated class membership.</div></div><div><h3>Conclusions</h3><div>Mothers of children with DD demonstrate heterogeneous combinations of distress and growth, supporting a dual-axis understanding of mental health. Social support—especially family support—and active religious participation emerged as key correlates of more adaptive profiles. Findings highlight the importance of culturally embedded support systems and tailored interventions that address both distress reduction and growth promotion.</div></div>","PeriodicalId":51351,"journal":{"name":"Research in Developmental Disabilities","volume":"169 ","pages":"Article 105235"},"PeriodicalIF":2.6,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146038818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"“It was like everything happened at once”: Interviews with parents about having a child with intellectual disability and behaviours that challenge","authors":"Constanza López Radrigán ,&nbsp;Paulina S. Arango Uribe ,&nbsp;Fernanda Gatica Ces","doi":"10.1016/j.ridd.2026.105230","DOIUrl":"10.1016/j.ridd.2026.105230","url":null,"abstract":"<div><div>This article explores the experiences of parents of children and adolescents with intellectual disability who exhibit behaviours that challenge (BtC). Using a qualitative approach, fifteen mothers and three fathers participated in in-depth interviews, which were coded using thematic analysis. We found three themes: (1) parents’ experiences raising a child with intellectual disability and BtC, (2) parents’ attributions regarding their child’s BtC, and (3) parents’ perceptions about factors that have supported or hindered their role as parents. Findings offer a situated account of experiences shaped by children’s needs and broader sociocultural and structural dynamics. This research highlights how parenting a child with intellectual disability and BtC is not solely a matter of individual or familial responsibility, but it is embedded in collective social arrangements. This contributes to a contextualised understanding of parenting processes in complex situations, promoting the development of family-centred and culturally relevant supports within the Chilean context.</div></div>","PeriodicalId":51351,"journal":{"name":"Research in Developmental Disabilities","volume":"169 ","pages":"Article 105230"},"PeriodicalIF":2.6,"publicationDate":"2026-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146038817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Facilitators and barriers to augmentative and alternative communication (AAC) adoption for children with autism spectrum disorder (ASD): Teachers’ perspectives","authors":"Talal E. Alhuzimi","doi":"10.1016/j.ridd.2026.105227","DOIUrl":"10.1016/j.ridd.2026.105227","url":null,"abstract":"<div><h3>Background</h3><div>Children with Autism Spectrum Disorder (ASD) often experience significant challenges in verbal and social communication, which can hinder their ability to express needs, interact socially, and participate in educational settings. Augmentative and Alternative Communication (AAC) systems ranging from low-tech tools like picture exchange systems to high-tech speech-generating devices are widely used to support and enhance communication in individuals with limited or nonverbal speech abilities.</div></div><div><h3>Aim</h3><div>This study investigated the perspective of teachers on identifying the facilitators and barriers of AAC usage using the TAM approach.</div></div><div><h3>Method</h3><div>Questionnaires were completed by 101 in-service teachers from Saudi Arabia teaching with direct experience in using and supporting AAC in the classrooms. They responded to the developed questionnaire covering various types of facilitators, barriers, perceived usefulness of AAC use, perceived ease of use of AAC, teachers’ attitude towards AAC, behavioral intention of teachers to use AAC, and adoption as well as implementation of AAC. The data obtained from the questionnaire were statistically analyzed using IBM SPSS software.</div></div><div><h3>Results</h3><div>The findings showed that perceived usefulness as well as perceived ease of use mediated the impact of facilitators and barriers of AAC. Moreover, teachers’ attitude was also found to mediate the impact of perceived usefulness and perceived ease of use on behavioral intention to use. Along with this, the sequential mediation of perceived usefulness or ease of use with teachers’ attitude was also established.</div></div><div><h3>Conclusions</h3><div>To facilitate the effective adoption of AAC, it is imperative that educational institutions provide sustained, practice-oriented professional development, guarantee consistent and equitable access to AAC technologies, and cultivate a school culture that actively endorses and systematically integrates AAC practices across teaching teams.</div></div>","PeriodicalId":51351,"journal":{"name":"Research in Developmental Disabilities","volume":"169 ","pages":"Article 105227"},"PeriodicalIF":2.6,"publicationDate":"2026-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146020312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}