Moss-Pas (Cha): For the Assessment of Mental Health Problems in Children and Adolescents

The Moss-PAS (ChA), formerly called ChA-PAS Interview, is for the mental health assessment of children and adolescents across the full developmental spectrum, including intellectual disability. It provides a semi-structured interview format in which the young person may contribute to whatever degree they are able, or it may be conducted by informant interview only. The scoring system provides a single score for each of the diagnostic constellations, each of which has a corresponding threshold. If the child or young person reaches or exceeds the threshold it is probable that they warrant a diagnosis in that constellation. However, a strong emphasis is placed on the importance of expert clinical judgement when interpreting the scores in relation to other pieces of information, such as history, environment, and family factors.