Research Methods in Psychology 5th edition (fifth edition)

About this book

Research Methods in Psychology 5th edition by Beth Morling teaches students how to evaluate psychological research and how to design studies of their own. The book develops the skills needed to distinguish scientific evidence from unsupported claims, formulate research questions, evaluate study quality, interpret findings, and connect research design choices with the conclusions that can legitimately be drawn from data.

The 5th edition covers scientific reasoning, information sources, frequency claims, association claims, causal claims, construct validity, external validity, statistical validity, internal validity, research ethics, measurement, surveys, observational methods, sampling, bivariate and multivariate correlational research, experimental design, factorial experiments, quasi experiments, and small sample designs. Additional material addresses replication, research credibility, qualitative methods, descriptive statistics, inferential statistics, effect sizes, confidence intervals, and presenting results in APA style.

This book is especially useful for Psychology Majors, Experimental Psychology Students, Research Methods Students, Behavioral Science Students, Social Science Students, Counseling Students, Clinical Psychology Students, Cognitive Science Students, and undergraduate researchers preparing research proposals or empirical projects. It is particularly valuable for evaluating journal articles, identifying confounds, assessing measurement quality, choosing sampling strategies, interpreting correlations, designing experiments, and determining whether evidence supports causal conclusions.

Psychology students, behavioral science students, research assistants, honors students, and undergraduate researchers can use this edition to plan studies, critique published research, distinguish correlation from causation, interpret statistical evidence, and prepare research reports and presentations. The 5th edition, 2025 is available as a searchable PDF enhanced digital version with instant access, making it convenient for research methods coursework, laboratory assignments, article critiques, research proposals, exams, and independent study.