Volume 1, the research component, includes a literature review examining the efficacy of interventions for parents of children with autism spectrum disorder (ASD) in relation to parent outcomes; an empirical paper, which presents findings of a quantitative study exploring parental illness perceptions, coping, wellbeing, parenting stress and parent perceptions of the child-parent relationship in parents of a child with pathological demand avoidance syndrome (PDA) and a public dissemination document. Volume 2, the clinical component, includes: a report detailing two psychological formulations; one from a cognitive behavioural perspective and one from a systemic perspective, for a 20 year old gentleman who was experiencing anxiety and depression, following removal of part of his bowel; a service evaluation report detailing an investigation of the extent to which a local respiratory service was addressing the psychological needs of COPD patients; a single case experimental design presenting an evaluation of a behavioural intervention for a 25 year old woman with a moderate learning disability, who presented with skin picking behaviours; a case study of a fourteen year old girl, who was under investigation for Crohn's disease and experienced anxiety and an abstract, reflecting on providing consultation within a looked after and adopted child's psychology service.