Russell A. Barkley, PhD, ABPP, ABCN, before retiring in 2021, served on the faculties of the University of Massachusetts Medical Center, the Medical University of South Carolina, and Virginia Commonwealth University. Dr. Barkley has worked with children, adolescents, and families since the 1970s and is the author of numerous bestselling books for both professionals and the public, including Taking Charge of ADHD and Your Defiant Child. He has also published six assessment scales and more than 300 scientific articles and book chapters on attention-deficit/hyperactivity disorder, executive functioning, and childhood defiance. A frequent conference presenter and speaker who is widely cited in the national media, Dr. Barkley is past president of the Section on Clinical Child Psychology (the former Division 12) of the American Psychological Association (APA), and of the International Society for Research in Child and Adolescent Psychopathology. He is a recipient of awards from the American Academy of Pediatrics and the APA, among other honors. His website is [...].

1. Executive Functioning 2. Development of the BDEFS 3. Normative Sample 4. Factor Analysis, Scale Construction, and Item Frequencies 5. Relationship of BDEFS Scores to Demographic Factors in the Normative Sample 6. Reliability 7. Validity 8. Scoring and Interpretation of the BDEFS Forms Appendix. BDEFS Forms and Score Sheets
· BDEFS-LF: Self-Report

· BDEFS-LF: Other-Report

· BDEFS-LF: Self-Report Score Sheet for Raw Scores (Ages 18-34, Males Only)

· BDEFS-LF: Self-Report Score Sheet for Raw Scores (Ages 18-34, Females Only)

· BDEFS-LF: Self-Report Score Sheet for Raw Scores (Ages 18-34, Males and Females Combined)

· BDEFS-LF: Self-Report Score Sheet for Raw Scores (Ages 35-49, Males Only)

· BDEFS-LF: Self-Report Score Sheet for Raw Scores (Ages 35-49, Females Only)

· BDEFS-LF: Self-Report Score Sheet for Raw Scores (Ages 35-49, Males and Females Combined)

· BDEFS-LF: Self-Report Score Sheet for Raw Scores (Ages 50-64, Males Only)

· BDEFS-LF: Self-Report Score Sheet for Raw Scores (Ages 50-64, Females Only)

· BDEFS-LF: Self-Report Score Sheet for Raw Scores (Ages 50-64, Males and Females Combined)

· BDEFS-LF: Self-Report Score Sheet for Raw Scores (Ages 65-81, Males Only)

· BDEFS-LF: Self-Report Score Sheet for Raw Scores (Ages 65-81, Females Only)

· BDEFS-LF: Self-Report Score Sheet for Raw Scores (Ages 65-81, Males and Females Combined)

· BDEFS-LF: Self-Report Score Sheet for Total EF Symptom Counts (All Ages and Both Sexes)

· BDEFS-SF: Self-Report

· BDEFS-SF: Other-Report

· BDEFS-SF: Self-Report Score Sheet for Total EF Summary Scores and EF Symptom Counts (All Ages and Both Sexes)

· BDEFS-SF Clinical Interview: Self-Report