Table 1.

Objects and Their Corresponding Target Responses for Each Participant

Participant	Condition	Object	Target response
Tim	Object only	Book	“Book”
		Small toy car	“Car”
		Baseball hat	“Hat”
	Object + question	Child's shoe	“Shoe”
		Stuffed toy dog	“Dog”
		Ball	“Ball”
Evan	Object only	Small toy car	“Caa” or “Car”
		Book	“Ook” or “Book”
		Child's shoe	“Shoe”
	Object + question	Ball	“Ball”
		Baseball hat	“Hat”
		Stuffed toy dog	“Dog”
Grace	Object only	Hippo toy figurine	“Hippo”
		Pig toy figurine	“Pig”
		Moose toy figurine	“Moose”
	Object + question	Rhino toy figurine	“Rhino”
		Shark toy figurine	“Shark”
		Bear toy figurine	“Bear”
Michael	Object only	Whistle	“Whistle”
		Slinky	“Slinky”
		Toy octopus	“Octopus”
	Object + question	Recorder	“Recorder”
		Toy submarine	“Submarine”
		Maraca	“Maraca”