This thesis project involved the development and validation over three major projects of a unique, needed, measure of pre-cursers to eating disorder practices. The first project identified potentially destructive eating practices via the development and validation of a scale on maladaptive eating practices - the Maladaptive Eating Practices Questionnaire (MEPQ) . The second project examined the efficacy of a preventative intervention for children at risk of an eating disorder, providing them with a set of skills to support healthy eating practices. The third project had as its focus the parental carers of children at risk of an eating disorder. Parental carers who participated in a cognitive-behavioural intervention developed skills to assist them and their children in eating management.