| Age/Sex | 5 years old, male |
| Disability-related characteristics | Receiving special education services; formal diagnosis of Autism Spectrum Disorder (ASD) not yet confirmed; comprehensive diagnostic evaluation at a university hospital was in progress; ASD characteristics identified through clinical assessment |
| K-CARS 2 | Total score: 30.5 (mild level of ASD characteristics) |
| SELSI | Receptive language age: 25 months; Expressive language age: 24 months |
| PEP-R | Developmental age: below 10-12 months across assessed domains; approximately 48-month developmental delay relative to chronological age |
| SMS | Social Age (SA): 2.95 years; Social Quotient (SQ): 59 |
| Communication and behavioral characteristics | Low frequency of spontaneous vocal communication; stable tact repertoire for familiar objects and pictures; limited independent mand repertoire; frequent reliance on nonverbal requesting behaviors (e.g., pulling an adult’s hand or reaching for desired items). |