Some operants can be placed in multiple categories. For example, in addition to positive punishment, requiring a student to stay after class to write an essay may also serve as negative punishment by removing the opportunity for the student to spend time with friends. | Some operants can be placed in multiple categories. For example, in addition to positive punishment, requiring a student to stay after class to write an essay may also serve as negative punishment by removing the opportunity for the student to spend time with friends. |