Projective technique " good and bad kindergarten"

There is known to many teachers-psychologists projective technique "Kindergarten", the purpose of which is to diagnose the psychological comfort of children in the kindergarten group. However, in practice, it is often necessary to observe such cases when, for unknown reasons, the child refuses to attend kindergarten. And what to do and how to be? How to identify the cause of the child's reluctance to go to kindergarten?