Table 1 Participant Characteristics

Category Description
Chronological Age/Gender 6 years, 2 months / Male
Medical Diagnosis Autism Spectrum Disorder (ASD) with language impairment
Family Information Father, mother, younger sister
K-WPPSI-IV 1) Full Scale IQ (FSIQ) 81, suggestive of developmental unevenness
PRES 2) Receptive language score 36, expressive language score 35; equivalent language age of 51 months, indicating a delay of approximately 23 months
ADOS-2 3) Total score of 19 in Communication (8) and Social Interaction (11), Play score of 2, Restricted and Repetitive Behaviors score of 3, falling within the autism classification
K-CARS2-ST 4) Raw score 32
Language and Cognitive Characteristics • Able to express wants and needs using simple 2- to 3-word sentences.• Able to answer questions, but has difficulty speaking in long sentences.• Able to ask questions or express refusal during play activities within his interests.• Difficulty maintaining conversation topics.• Difficulty using contextually appropriate language.• Capable of basic comparisons based on physical properties (e.g., size, shape).• Capable of simple communication, but shows significant deficits in identifying arbitrary deictic relations without visual cues, as well as in situational context inference and problem-solving.
Behavioral Characteristics • Repeatedly talks about favorite cartoons regardless of the context.• Shows sensitivity to auditory stimuli by covering his ears or avoiding them.
Current Interventions ABA, Speech Therapy, Sensory Integration, School Readiness Group
Korean Wechsler Preschool and Primary Scale of Intelligence, Fourth Edition (K-WPPSI-IV; Shin et al., 2017)
Preschool Receptive-Expressive Language Scale (PRES; Kim et al., 2003)
Autism Diagnostic Observation Schedule, Second Edition (ADOS-2; Kim et al., 2014)
Korean Childhood Autism Rating Scale, Second Edition, Standard Version (K-CARS2-ST; Lee, Yoon, & Shin, 2019)