ABSTRACT
Imagine the following situation. You are babysitting for Clark, who is 2½. You are getting ready to go to the park, which Clark loves, and you tell Clark that he needs to get his shoes on
before you can leave the house. Clark sits down on the floor, pulls his shoes on, and starts to tie his laces. You see that he is having trouble, so you offer to help. “No!” says Clark, “I do it.” You wait a while, and then you say, “Let me get that so we can go to the park.” “No!” says Clark again, and pulls away. “Don’t you want to go to the park?” you ask. Clark takes his shoes off and throws one at you. He falls on the floor, kicking and crying “no shoes, no help, no park!”
