Table 2.

Themes and codes for pre and post teacher interviews

Theme	Codes	Definition
Desired Topics for the BabyTok Project	New communication strategies	ITTS describe a desire to learn new ways to support children's communication
	Expand knowledge	ITTs describe wanting to expand on their pre-existing knoweldge about early development
	Unknown expectations	ITTs describe being unsure about what to expect or what they hoped to learn from the project
Thoughts and Feelings in Role as ITT	Felt more knowledgeable and responsible for detecting early signs of communication delays	ITTs state that they are more aware of their role in identifying early delays
	Increased pride in role as an early educator	ITTs report feeling reinforced in their role as an early educator or an increased feeling of pride in their work
Changes in Teaching Practices	Increased eye contact/shared attention when interacting with children	ITTs describe the importance of face to face interactions and shared attention when engaging with infants and toddlers
	Increased patience when interacting with children	ITTs describe increased patience when interacting with infants and toddlers in their room
	Generated more ideas for classroom activities	ITTs state that the videos gave them ideas to implement in their rooms (i.e. songs, books, etc.)
	Discouraged use of baby talk	ITTs report using less “baby talk” and more descriptive langauge
	Increased language input when around children	ITTs describe talking more to children in their care
	Felt affirmed regarding current strategies used	ITTs state that the videos reaffirmed that strategies that they currently use are important and meaningful
	Positive behavioral support skills and emotional awareness	ITTs describe gaining more awareness of infant and toddler emotions and behavior management skills
Tiktok as a Learning Platform	Convenience	ITTs described Tiktok as a convenient means to learn for one or more of the following reasons: 1) flexible scheduling to complete videos, 2) ability to revisit videos, 3) additional resources, 4) concise information, 5) quick viewing, and 6) ease of integrating into daily social media use
	Engaging nature of videos	ITTs describe the videos as fun, easy to watch, and enjoyable
	Supportive of learning	ITTs described ways that Tiktok supported their learning because one or more of the following factors: (1) visual learning through videos, (2) ease of information retention, and (3) informational review of basic concepts.