Instill a sense of pride in her body and in learning to recognize her own body signals. Positive reward . You may also need to motivate her with a reward program that will better inspire her performance. Talk with her parents about a plan you can all agree to reinforce, both at home and at your house. Consider a reward that will work for your grandchild.
Many parents resort to candy reinforcement for toilet training.
There is no need to create an ongoing pattern of using food for reward, but at this age, many children do respond to candy, when other nonfood rewards, such as stickers, have failed. Lollipops, held on a stick, hold great appeal to children of this age. Your granddaughter can learn to take pride in learning the cues her body gives her that signal to her that it is time for a trip to the bathroom. Help her to develop a sense of pride in her accomplishment. She is a clinical member of the Association for Marriage and Family Therapy, and a Diplomate with the National Association of Social Work.