Edward NelsonEdward Nelson is professor emeritus of sociology at California State University, Fresno. He received his PhD in sociology from UCLA specializing in research methods. He was the director of the Social Research Laboratory at California State Uniersity, Fresno, from 1980 to 2013 and has directed more than 150 surveys. He taught research methods, quantitative methods, critical thinking, and computer applications. He has published books on observation in sociological research, and using SPSS, a statistical computing package widely used in the social sciences. Read More Read Less