Experimental methodology

This text presents a reader-friendly introduction to the basic principles of experimental and non-experimental psychological research. Experimental Methodology is organized so that each chapter focuses on a specific step in the research process. This text provides an instruction in the experimental research and an introduction to non-experimental approaches such as ex-post facto research, correlational research, and survey research. - New Chapter 7 Validity in Experimental Research combines coverage of external and internal validity. Combines Chapter 7 Control in Experimentation and Chapter 14 External Validity from last edition. - Incorporates the new APA code of ethics as in pertains to research. - Chapter opening Learning Objectives have been replaced with Visual Overviews to give students a visual overview of the upcoming material. - New end of chapter mini-quizzes help students review material. - Online study questions written by author. - Incorporates both quantitative and qualitative research to give students a balanced perspective. - Chapter-opening vignettes focus on current events to demonstrate the real-life relevance of psychological research. - Study question