Anna Leon-Guerrero is Professor of Sociology at Pacific Lutheran University in Washington. She received her PhD in sociology from the University of California-Los Angeles. She was the recipient of the university's Faculty Excellence Award and the K. T. Tang Award for Excellence. She is the author of and Social Problems: Community, Policy, and Social Action, 7th Edition, and co-author (with Chava Frankfort-Nachmias and Georgiann Davis) of Social Statistics for a Diverse Society, 10th Edition (both with Sage). Chava Frankfort-Nachmias is an Emeritus Professor of Sociology at the University of Wisconsin-Milwaukee. She is the coauthor of Research Methods in the Social Sciences (with David Nachmias), coeditor of Sappho in the Holy Land(with Erella Shadmi), and numerous publications on ethnicity and development, urban revitalization, science and gender, and women in Israel.

She was the recipient of the University of Wisconsin System teaching improvement grant on integrating race, ethnicity, and gender into the social statistics and research methods curriculum. William E. Wagner, III, PhD, isChair of the Department of Sociology at California State University, Dominguez Hills andExecutive Directorof the Social Science Research & Instructional Council of the CSU.He is co-author of Adventures in Social Research, 11th edition (SAGE, 2022), The Practice of Survey Research(SAGE, 2016), and A Guide to R for Social and Behavioral Sciences (SAGE, 2020) and author of Using IBM® SPSS® Statistics for Research Methods and Social Science Statistics, 7th edition (SAGE, 2019).