Background: Problem behaviours are common among people with intellectual disabilities (ID), but psychometrically evaluated instruments for assessing such behaviours are scarce. The present study evaluated the psychometric properties of the Neuropsychiatric Inventory--Intellectual Disability (NPI-ID). Method: We assessed 108 residents with…

Background: Obsessive-compulsive (O-C) traits, and excessive food intake are well known behavioural manifestations among individuals with Prader-Willi Syndrome (PWS). Other unwanted behaviours are also frequently observed, but they need a more specific investigation, especially in the adult population. Methods: The behaviour of 31 PWS adults was…

Background: This study assessed whether a Learning Disability Service should develop a specific autism strategy or provide services on a needs-led basis. Materials and methods: An autism screening questionnaire had been used to identify individuals scoring above a cut-off who had (n = 9) or had not (n = 15) received a formal diagnosis of autism. A…