Black Belt Statistics: A Competency-Based Approach (Plus SPSS and R) clearly communicates statistical competencies to students, allows for practice and evaluation, and arranges competencies in a hierarchy. The workbook employs a martial arts-inspired belt system, awarding students new achievement ranks after they've demonstrated mastery of key concepts.The workbook's chapters each represent a belt and proceed in ascending order from white belt to black belt. The text addresses basic terminology, research designs and variables, scales of measurements, central tendency, bivariate correlation and scatterplots, hypothesis testing, confidence intervals, ANOVA, Chi-Square, SPSS and R programming, and more.The second edition includes revisions throughout the text, updated images in Chapters 12 and 13, a new pedagogical feature in each chapter called Blackbelt Challenge Questions, and a new contributing author, Catrina Notari.Designed to help students at all levels develop statistical skills and a sound knowledge base, Black Belt Statistics is an ideal supplementary workbook for courses in social science statistics and statistical methods.Thomas Sawyer has over two decades of experience teaching psychology statistics and research methods at the undergraduate and graduate level. His research examining or utilizing research methods has been shared via conference presentations and peer-reviewed publications.Lisa Hollis-Sawyer is an associate professor of psychology and an instructor in women's studies and public health at Northeastern Illinois University. She has taught research methodology and statistics courses at the undergraduate and graduate levels since 1990 at various educational institutions.Patrick Nebl is an associate professor of psychology at Elmhurst University. He received his master's and Ph.D. degrees in experimental neuroscience from Bowling Green State University.Catrina Notari is an assistant professor of psychology at the University of West Florida. She holds a Ph.D. in industrial and organizational psychology from Montclair State University.