Sue's teachers say she isn't motivated by anything. she shows little interest in toys, activities or food. an exception appears to be one cd that she listens to exclusively. what can sue's teachers do to broaden her reinforcement repertoire?

What Sue's teachers can do to broaden her reinforcement repertoire is to incorporate toys, various activities or food and that cd to play in the background. While Sue's at it, playing because her favorite cd is there, the teacher can slowly lower the volume of the cd so that Sue can focus on playing toys and other stuff.