​About the Authors Robert McEntarffer, Ph.D. Prof. McEntarffer is currently an assessment specialist for Lincoln Public Schools in Lincoln, NE. He has taught AP Psychology at Lincoln Southeast High School in Lincoln, NE for  13 + years  as well as Introductory Psychology at Nebraska Wesleyan University. He has extensive experience in scoring the Advanced Placement Psychology free-response questions, having served as a Reader, Table Leader, and as the high school Question Leader. Rob is the past chair of the national organization Teachers of Psychology in Secondary Schools and has worked with the committee on the National Standards for the Teaching of High School Psychology. In addition to his many achievements, he also writes assessment materials for high school and college level introductory psychology textbooks. Allyson Wesely, Ed.D. Allyson has been teaching AP Psychology and runs a Behavioral Science Research Program at Roslyn High School in Roslyn Heights, NY for 20+ years Her students have a 100% passing rate on the AP exam; well over 80% earning 5’s. She has  served as a Reader and Table Leader for the AP Psychology exam and has led several psychology teacher workshops in addition to serving on the Board of Teachers of Psychology in the Secondary Schools. About the Publisher Many great things begin with a tiny spark, and for Manuel H. Barron that spark came from a mimeograph machine in the basement of his Brooklyn, NY, bookstore in the late 1930s. People from the community asked Mr. Barron for books to help their children study for the New York State Regents exams. After realizing there wasn't anything available, Mr. Barron created his own study guides. Now, more than 80 years later, Barron’s continues to help millions of learners worldwide prepare for their next steps. With offerings from pre-college prep to world language guides and professional certification exams, Barron’s wants to be part of your success story no matter what learning path you’re on. You can trust Barron’s to provide exceptional products created only by top experts with years of experience in education. From generation to generation, our mission remains the same: Learn, grow, and succeed with Barron’s throughout your life-long learning journey.