° 3) Alone condition: In this condition, the student would be alone in a room with no materials of any kind present, neither positive (reinforcers) nor aversive (demands). The room should be as empty as possible. If the frequency of tantrums increased, you'd know automatic positive reinforcement was the function.
° 4) Play condition: In this condition, the teacher and student would be in a room with toys, games, or other reinforcing stimuli present. Provide lots of attention and positive reinforcement noncontingently (not dependent upon anything your student did). If the frequency of tantrums increased, you'd know automatic negative reinforcement was the function, and that he should go to a doctor for an exam.