Table 1 Basic Background Information of the Child Participants

Child Sex Age (Years; Months) Diagnosis CARS PRES SELSI Remarks
A Male 4 years 8 months (Born Mar 2020) ASD (with ID) 37.5 42-month level 22 months /20 months Attempts simple word-level sentences; some mand and tact responses possible
B Female 7 years 9 months (Born Feb 2017) ASD 43 32-month level 25 months /21 months Word-level utterances; difficulty generalizing tacts
C Male 7 years 3 months (Born Aug 2017) ASD 35 34-month level 20 months /18 months Noun-based tacts; limited verb production
CARS: Childhood Autism Rating Scale
SELSI: Sequenced Language Scale for Infants
PRES: Preschool Receptive-Expressive Language Scale