Table 2 Behavioral Characteristics of Participants

	Child A	Child B
Language Skills	• Child A expresses basic needs by pulling on clothes or hitting their body repeatedly (2-3 times); able to respond to simple instructions.	• Child B engages in echolalia but has limitations in using language actively. She can verbally express simple, repeatedly learned phrases and understands three-word sentences when they contain familiar words.
Social-interaction Skills	• Child A shows more interest in younger children than in peers but interacts in an inappropriate manner.	• Child B shows little interest in peers but may engage with familiar adults depending on their mood.
Daily Living Skills	• Child A has difficulty distinguishing the front and back of clothing and struggles to position their arms correctly when putting on a shirt.• Child A finds it difficult to correct mistakes while dressing and requires assistance.• Child A engages in sensory play with water or the soap dispenser when washing hands and needs help to complete the task• At home, parents provide full assistance, and Child A is accustomed to performing tasks dependently.• According to a preliminary parent interview, Child A needs motivation and experience for active participation.	• Although distinguishing the front and back of clothing is challenging, Child B can put on shirts, pants, and socks independently.• Child B frequently squeezes out and eats toothpaste, struggling to brush her teeth independently.• Child B has never attempted meal preparation at school without the help or prompting of a teaching assistant.• At home, parents assist with all tasks and do not encourage independent execution for Child B.• According to the preliminary parent interview, Child B needs guidance in understanding task sequences and opportunities to practice tasks independently.