Adaptation and Validation of Barkley Deficits in Executive Functioning Scale for Adults in A Lebanese University

Abstract

Executive functioning (EF) plays a crucial role in self-regulation across various aspects of life, yet its definition remains varied within literature. This study aims to validate and adapt the Barkley Deficits in Executive Functions Scale – Adults (Self-Rating scale) for assessing EF deficits in adults aged 18 to 33, particularly within the Lebanese context. Given the scarcity of EF research, especially in Lebanon, this exploratory study focuses on AUB students as a representative sample. Using a descriptive quantitative research design, we adapted the BDEFS-A scale and obtained expert review. Although challenges hindered piloting, the adapted scale was administered to a normative sample, yielding a final sample of 52 participants. Reliability analysis showed moderate to high internal consistency (α = 0.43 to α = 0.80). Construct validity analyses revealed no significant gender or education effects on EF deficits. However, age effects varied across subscales. Discriminant validity analysis showed differences in EF deficits between ADHD and non-ADHD students. Norms were developed for each subscale. Despite limitations, this study underscores the reliability and preliminary validity of the adapted BDEFS-A among AUB students. Further research is warranted to establish robust validity evidence and expand the sample size.