Table 2.

Summary of themes and subthemes

Theme	Subtheme
Implementation facilitators
ECD1 practitioner ASD2 knowledge and ongoing supervision	Baseline ASD knowledge
	Ongoing supervision
Positive coaching experience	Caregiver coaching structure
	Strong team relationships
Clear illustration of intervention concepts from the session videos	Illustration of intervention skills
Implementation barriers
Intervention and coaching concepts	Complexity of concepts
	Misalignment of ECD practitioner training with a caregiver coaching approach
Logistical challenges	Time constraints
	Access to physical resources
Video content misaligned with South African context	Mismatch of material with the South African context
Facilitators to sustain the intervention
Child and caregiver outcomes	Child outcomes
	Caregiver ‘buy-in’
	Caregiver competence
Structural factors promoting intervention sustainability	Ongoing supervision
	Feasibility within the school system
Barriers to sustain the intervention
Structural issues	Poverty, transportation, unemployment

¹ECD, Early Childhood Development;

²ASD, autism spectrum disorder.