Terry sat in his middle school principal’s office knowing that in a few short minutes, he would be feeling the pain and humiliation of being paddled.

No parent, administrator or teacher should find this scenario acceptable. Yet, every school day, an estimated 838 students like Terry receive corporal punishment in American schools. Nineteen states still allow corporal punishment, despite research that clearly indicates such public humiliation is ineffective for changing student behavior and can, in fact, have long-term negative effects.

For a decade I have studied approaches that are effective for promoting appropriate student behavior. And as a teacher for a dozen years, I experienced personal reward as well as pride in my students, as they learned and used appropriate behaviors. I have not come across a single valid study that showed any positive effect of corporal punishment.