Development and Content Validity of IFERA-II for Adults

Abstract

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