Table 1. Participant Descriptions.

Name	Age	Developmental description	Gender	Academic tasks	Reinforcers
Mona	5	Typical	F	Point to sight words	M&Ms®, cheese Ritz®, jelly beans
Jay	4	Typical	M	Point to letters, numbers, and shapes	Goldfish®, Skittles®, gummy candies, cheese Ritz®, chocolate balls
Mike	5	Autism	M	Point to sight words	Kix®, Goldfish®, Fruit Loops®, Golden Grahams®
Stan	4	Typical	M	Point to letters, numbers, and shapes	Fruit Loops®, jelly beans, M&Ms®, Skittles®
Nick	3	Typical	M	Point to letters, numbers, and shapes	Goldfish®, Fruit Smiles®, jelly beans
Sue	5	Typical	F	Point to letters, numbers, and shapes	Fruit Smiles®, M&Ms®, Goldfish®