Problem behaviours and symptom dimensions of psychiatric disorders in adults with intellectual disabilities: An exploratory and confirmatory factor analysis

Abstract

Background

Prevalence of Challenging Behaviour in Adults with Intellectual Disabilities, Correlates, and Association with Mental Health

“…In addition, existing research suggests that mental ill health may be a correlate of CB. However, there is less certainty regarding exactly how and why CB and MH problems are related in adults with ID [38,39].…”

“…In addition to these conceptual challenges, much of the research has been adversely affected by methodological limitations including modest sample sizes [42], cross-sectional designs [57], and tautological issues such as studying people with ID already diagnosed with a psychiatric condition to elicit the presentation of MH problems in people with ID [5•]. Latterly, some of the statistical approaches employed have been questioned due to a failure to control for confounding variables, the use of techniques unsuited to categorical data, and a failure to validate (confirm) exploratory factor analyses [38,42].…”

Recognition and treatment of mood dysregulation in adults with intellectual disability

“… 8 Likewise, mood dysregulation is seen as a key feature in psychopathology among individuals with intellectual disability (ID). 9 …”

“…The term intellectual disability has been adopted by the World Health Organization, the US federal government, and advocacy and professional organizations to replace the term mental retardation . 9 Intellectual disability encompasses a wide variety of conditions arising from genetic, perinatal, developmental, or idiopathic causes that are associated with below-average intelligence and corresponding deficiencies in adaptive behavior. Adaptive behavior includes the conceptual, social, and practical skills that allows people to function in their daily lives.…”

“…About 1% of the population has an ID. 9 Intellectual disability is categorized as mild, moderate, severe, or profound based on measured intellectual functioning and associated levels of functional impairment.…”