Mental retardation is a state of mental development that is stalled or incomplete which is mainly marked by the occurrence of skill constraints during the development period, so that it affects the overall level of intelligence, for example cognitive, language, motoric, and social abilities. Skills constraints during the development period cause parents to be confused, sad, frustrated and even refuse the presence of children who are mentally retarded. The purpose of this study was to determine the correlation of parental knowledge with the level of independence of Activity of Daily Living mentally retarded children in the Mental Clinic of UPTD Bali Provincial Mental Hospital. The sampling method is Non-Probability sampling type ...