Do sticker charts help or harm?

The big question for many parents of young children is - how can I get my kids to do what I'm asking them to do?The big question for many parents of young children is - how can I get my kids to do what I'm asking them to do?Some parents swear by sticker charts or reward charts and the idea that you can encourage your child to do certain things with the promise of a material reward.But can this do harm if a child decides they'll only be helpful when something they want is given in return?Michelle Melville-Smith is a Psychologist with parenting organisation Triple P NZ.Go to this episode on rnz.co.nz for more details