Yоu аre а BCBA cоnsulting аt a lоcal school. You have been talking with a teacher who wants to implement a group contingency, but measure each student’s progress individually. She would like all of the students to work on raising their hands until they are called on by the teacher before speaking. You work with her to create a token board for each student and as they raise their hand and wait for the teacher to call on them, they receive a token. The tokens can be exchanged at the end of the week for a preferred item during free time. What group contingency does this describe?