This text focuses on analyzing and critically evaluating published research. The text includes a checklist, sample study, and research problems that are already worked out. This fifth edition features instructions and descriptions for running statistical tests using the personal computer and the software program SPSS. The text also includes expanded coverage of qualitative data collection methods. Smaller changes include more information on the ethical requirements for researchers and discussion of the use of meta-analysis and techniques for employing a wider range of research designs.