Professor O'Malley Is Examining Ways to Help Autistic Children Remain

Multiple Choice

Professor O'Malley is examining ways to help autistic children remain calm during class. He gives one group of autistic children a spinner that they can play with during class; the other group is given a small stuffed animal. He then measures attention during class. What is the dependent variable in this study?

A) type of toy
B) whether the child has autism
C) the child's attention
D) how long the child plays with the toy