Objectives: The aim of the current study was to develop and evaluate the validity and reliability of Persianself-report version ofSwanson, Nolan and Pelham rating scale (version IV) (SNAP-IV). Method: The study population consisted of all 13 to 15 year-old female students of Shiraz city. To prepare the Persian self-report form of SNAP-IV rating scale, the English text of the scale (parent form)...