The book that established itself as a standard text and reference work for students seeking to master research methods and procedures in psychology has been updated and revised in this new edition! The Second Edition of The Psychology Research Handbook: A Guide for Graduate Students and Research Assistants once again offers a comprehensive guide for understanding and conquering the entire research process. Editors Frederick T. L. Leong and James T. Austin have assembled a distinguished group of expert researchers who share skill sets accumulated as a result of years of practical exposure to the design, development, implementation, and documentation of research in psychology.
Many studies in psychology are concerned with phenomena and theories that are multilevel in nature. The central defining feature of multilevel research is that the data is hierarchically structured or nested, that is, the units of observation at one level of analysis are nested (meaning grouped) within units at a high level of analysis. In psychology, the most common examples of hierarchically structured data may be found in organizational and educational research. For instance, a study may consist of employees nested within work teams resulting in a two-level research with the individual employees at the lower level (Level 1) and teams at the higher level (Level 2). As another example, a study consisting of students nested within classes and classes in turn ...