2009j-102 2011j-827 acceptanceandcommitmenttherapy addiction addictions adolescence adolescent adolescentpsychology adolescentpsychotherapy adolescents anxietydisorders anxietyinadolescence anxietyinchildren bashfulness behaviormodification behaviortherapy child childhood childpsychotherapy clinicalchildpsychology cognitivebehavioraltherapy cognitivetherapy cognitivetherapyforchildren cognitivetherapyforteenager constructivism(psychology) criminology eatingdisorders eatingdisordersinadolescence enfants exercises fear fearinchildren inadolescence ininfancy jeunesendifficulté juveniledelinquency juvenileliterature juvenileoffenders mentaldisorders methods modificationducomportement polytoxicomanie problems problemsexercises problemyouth psychiatry psychologieclinique psychology psychopathology psychotherapy psychothérapie rehabilitation servicesocialauxjeunesdélinquants socialphobia socialwork socialworkwithjuveniledelinquents substance-relateddisorders substanceabuse substanceuse therapy thérapiecognitivepouradolescents thérapiecognitivepourenfants traitement treatment