Anxiety (4) Teenagers (3) Psychology (3) Estudio (3) Ansiedad (3) Psicología (3) Symptoms (2) Girls (2) Factores (2) Adolescentes (2) puits (1) trajectoire (1) temps (durée) (1) besoin (1) modèle (1) énergie (1) Testing (1) Treatment (1) Methods (1) Contingent valuation (1) Programs (1) Labor (1) Weights and measures (1) Time (1) Testing (1) Stability (1) Psychotherapy (1) Prophecies (1) Power resources (1) Power (Mechanics) (1)