title: Unhealthy weight control behaviours in adolescent girls: a process model based on self-determination theory.
abstract: This study used self-determination theory (Deci, E.L., & Ryan, R.M. (2000). The 'what' and 'why' of goal pursuits: Human needs and the self-determination of behavior. Psychological Inquiry, 11, 227-268.) to examine predictors of body image concerns and unhealthy weight control behaviours in a sample of 350 Greek adolescent girls. A process model was tested which proposed that perceptions of parental autonomy support and two life goals (health and image) would predict adolescents' degree of satisfaction of their basic psychological needs. In turn, psychological need satisfaction was hypothesised to negatively predict body image concerns (i.e. drive for thinness and body dissatisfaction) and, indirectly, unhealthy weight control behaviours. The predictions of the model were largely supported indicating that parental autonomy support and adaptive life goals can indirectly impact upon the extent to which female adolescents engage in unhealthy weight control behaviours via facilitating the latter's psychological need satisfaction.
authors.affiliation: School of Sport and Exercise Sciences, College of Life and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, UK. c.thogersen@bham.ac.uk
authors.forename: Cecilie
authors.initials: C
authors.lastname: Thøgersen-Ntoumani
authors.forename: Nikos
authors.initials: N
authors.lastname: Ntoumanis
authors.forename: Nikitas
authors.initials: N
authors.lastname: Nikitaras
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior / Q000523:psychology*; D001828:Body Image; D002648:Child; D004038:Diet, Reducing / Q000009:adverse effects*; D005260:Female; D006040:Goals; D006115:Greece; D006801:Humans; D008962:Models, Theoretical; D009765:Obesity / Q000523:psychology*; D026684:Personal Autonomy; D010549:Personal Satisfaction; D011582:Psychological Theory; D012574:Schools; D012927:Social Control, Informal; D012959:Socioeconomic Factors; D013334:Students