IBM SPSS for Introductory Statistics: Use and Interpretation, Fifth Edition Tapa blanda - 2012

George A. Morgan is Emeritus Professor of Education and Human Development at Colorado State University. He received his Ph.D. in child development and psychology from Cornell University. In addition to writing textbooks, he has advised many Ph.D. students in education and related fields. He has conducted a program of research on children's motivation to master challenging tasks.

Nancy L. Leech is Associate Professor at the University of Colorado, Denver. She received her Ph.D. in education with an emphasis on research and statistics from Colorado State University in 2002. She is currently teaching graduate level courses in research, statistics, and measurement. Her area of research is promoting new developments and better understandings in applied, quantitative, qualitative and mixed methodologies.

Gene W. Gloeckner is Professor and chair of the research methods specialization in Education at Colorado State University. He received his Ph.D. from Ohio State University.? Much of his writing and teaching has focus on issues in quantitative, qualitative, and mixed research methods. He has advised or served as methodologist on over 50 Ph.D. committees.

Karen C. Barrett is Professor and Assistant Department Head of Human Development and Family Studies at Colorado State University where she teaches graduate research methods and statistics. She received her Ph.D. in developmental psychology from the University of Denver. Her research regards emotion regulation and its influence on development; the development of social emotions such as guilt and shame; and family and cultural influences on emotions.