The caboose starts monday and the engine ends on sunday. He always gets 5 stars, even on bad days. I'm hoping it will develop a good self image for him. I feel like he thinks he's a bad boy because he's always getting in trouble. At the end of the week he gets to choose his reward. family movie night, family game night, bowling together have been a few. I think it's working. In general he seems to be making more good choices throughout the day.