.Board Review Series Behavioral ScienceThe third edition of BRS Behavioral Science contains 9 sections divided into 26 chapters. All chapters start with a "Typical Board Question" (TBQ), which serves as an example for the way that the subject matter of that chapter is tested on the USMLE. Each chapter has been extensively updated to include the most current information. A total of at least 500 questions and answers with detailed explanations are presented after each chapter and in the Comprehensive Examination at the end of the book. Almost all of these questions have been written expressly for this third edition and reflect the new USMLE format utilizing clinical.