Abstract
The purpose of this study is to develop a self reported scale specifically designed to assess ADHD symptoms and signs (EA-TDAH). Methods: A preliminary scale was generated based on DSM–IV criteria for ADHD and related signs. The Delphi technique was used due to analyze content and apparent validity. A pilot study was conducted using a normative sample compound by 382 children and adolescents aged nine to 17. The EA-TDAH scale was rated by experts as clinically useful, and it showed high internal consistency (?=.86) and an adequate structural validity with two components. According to YSR’s DSM correspondences, participants were classified as possible ADHD cases (13.8%) and not ADHD cases, it was the first group that showed higher ratings in the new scale. Although further investigation with clinical samples is needed, EA-TDAH seems to be an adequate scale for assessing ADHD symptoms and signs.