Development and Content Validity of IFERA-II for Adults

Abstract Considering the importance of functional assessment, a scale was developed to evaluate Executive Functions (EFs), State Regulation (SR) and Delay Aversion (DA) in adults, based on children’s scale, evidence content validity investigated. In Phase 1, items from version were adapted generate Inventory Difficulties Functions, for Adults (IFERA-II), with 28 EFs (inhibition, working memory flexibility), RS DA. Analysis by judges verified representativeness contents items. After adaptations, 18 adult participants responded IFERA-II interviewed regarding comprehension, need examples clarity vocabulary. A new revision led preliminary IFERA-II, psychometric properties which should be