When meeting with parents for the first time, I always ask them what their primary goals are. Sometimes parents complain to me about tantrums, and want ways of eliminating tantrum behaviour in their kids. This usually leads me to discussing how every behavior has a function (or purpose), and that in order to change any behavior, we must first determine the function of it. Once we assess what the function of the behavior is, we can than work on teaching a replacement behavior that is more appropriate. The replacement behavior should provide the child with the same or similar result that their inappropriate behavior previously resulted in.