Effectiveness of Intensive Linguistic Intervention in Autism Spectrum Disorder: A Case Study.
One month of 27-hour-per-week individualized language therapy sharply improved speech in a preschooler with autism.
01Research in Context
What this study did
One young learners boy with autism got 27 hours of one-to-one language work each week.
The sessions lasted four weeks and were done in Spanish.
Therapists targeted articulation, vocabulary, and longer sentences all at once.
What they found
After the month, the boy spoke more clearly and used longer sentences.
Parents and teachers both noticed he talked more often and with new words.
No standard scores were given, but gains were called large.
How this fits with other research
Schertz et al. (2016) pooled 40 early-language studies and saw small, steady gains.
Our 2025 case shows one child making big jumps when dose is triple the usual.
Abdi et al. (2023) also saw very large vocabulary gains after only 16 sessions.
Their package mixed several theories; ours used one intense linguistic plan.
Both studies say brief, high-dose language work can move minimally verbal kids.
Why it matters
If a preschooler on your caseload is still mute or hard to understand, try condensing goals into a short, daily burst.
Four weeks of 5–6 hour days may jump-start speech faster than one 45-minute weekly slot.
Track clarity, mean length of utterance, and parent report to see if the boost sticks.
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02At a glance
03Original abstract
Background: Autism Spectrum Disorder (ASD) is currently classified as a neurodevelopmental disorder with increasing prevalence year by year. One of the key characteristics of this population is the persistent and variable difficulty they present in the development of functional language. For this reason, most individuals with ASD are candidates for linguistic treatment, especially during the early stages of development. The aim of this study was to assess the effectiveness of an individualized and intensive oral language and communication intervention. Method: This research was conducted through a case study of a 5-year-old Spanish-speaking child diagnosed with ASD. The child’s family sought intensive speech therapy to address articulation difficulties that were affecting speech intelligibility. However, a linguistic intervention program was proposed that would cover work in all areas of language. A comprehensive assessment of the child’s language and communication skills was carried out by a team of five professionals. Following this, an individualized intervention was implemented for 27 h per week over a period of 4 weeks. After this period, the child’s linguistic skills were reassessed. Results: The results show that the proposed intervention not only improved articulation skills. Conclusion: It is important to conduct a detailed analysis of each case and design individualized interventions that directly impact the effectiveness of treatments.
Children, 2025 · doi:10.3390/children12020182