B.D.
The answer, like others have said, is 1 minute for every year. Now that being said, if your child does not know why they are in T.O. it will not work. What I find even better is tackling what's going on right then. If your child is using words that are not kind, take that moment and making it a learning lesson.
"I can hear that you are very upset right now and I would like to hear about it, but please use your calm words." Then give an example of a sentence that your child CAN use to express how they feel but is also not hurtful to anyones feelings. Disagreeing is not disrespect. Also take a look at how the people in your child's world speak. Do you and your partner yell at each other or are your sharp and sarcastic? Do you speak sharply and with attitude to your child? Model the behavior that you would like to see. If the offending child cannot seem to speak kindly let them know that there will be consequences. "If you continue to yell at me, you will have to spend some time by yourself, I do not want to be yelled at. No one in this house deserves to be spoken to in that tone. You can tell me what you need but please use your calm words." Instead of just time out ( you were bad now you are punished) your child is asked to leave because they are not treating family members kindly and your home should be a safe place where peoples feelings are taken care of.
B. Davis
Child And Family Coaching
www.childandfamilycoaching.com