... number of well-validated child instruments have been developed [2].Given the lower cognitive and language skills of youngchildren, the majority of child QOL instruments havebeen developed for children ... parent -child agreementcan be effected by the types of domains investigated and the ages of children in the sample. Our use of two differ-ent statistical methods allowed consideration of both the correlational ... relationship to child (i.e., mother vs. father), the mental health of the parent themselves, and for sick pop-ulations by different disease types (e.g., asthma vs. cancervs. epilepsy). The optimal...