Reporting Quantitative Research in Psychology offers practical guidance for understanding and implementing Journal Article Reporting Standards (JARS) and Meta-Analysis Reporting Standards (MARS) for quantitative research. These standards lay out the essential pieces information researchers need to report, including detailed accounts of the methods they followed, data results and analysis, interpretations of their findings, and implications for future research. This new edition reflects recent updates to the JARS and the MARS that meet developing needs in the behavioral, social, educational, and medical sciences. Author Harris Cooper analyzes examples from APA journals, offering readers easy-to-read advice for implementing these revised standards in their own writing while also conforming with the APA Style guidelines laid out in the sixth edition of the Publication Manual. New and expanded chapters offer more detailed guidelines for reporting statistical analyses and unique elements of different types of research, including replication studies, clinical trials, and observational studies. This book is essential reading for experienced and early career researchers alike, as well as undergraduate and graduate students in research methods classes.