For which of the following would it be appropriate to measure duration?

Results of a functional assessment reveal that a child engages in hand-biting when she is in a room by
herself. The likely function of behavior is:

Which is the best definition of a behavior function?

A teacher uses a group contingency with her students. She states the following rule: "If everyone gets
100% on their spelling test the week, I will turn cartwheels down the hall for you." What type of group contingency is this?

Which of the following is NOT a dimension of applied behavior analysis?