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Editor's note: This is the 15th article in a series on clinical research by nurses. The series is designed to be used as a resource for nurses to understand the concepts and principles essential to research. Each column will present the concepts that underpin evidence-based practice—from research design to data interpretation. To see all the articles in the series, go to https://links.lww.com/AJN/A204. This article, one in a series on clinical research by nurses, describes the development of a research study from research question to empirical strategy. [ABSTRACT FROM AUTHOR]

Editor's note: This is the 16th article in a series on clinical research by nurses. The series is designed to be used as a resource for nurses to understand the concepts and principles essential to research. Each column will present the concepts that underpin evidence-based practice—from research design to data interpretation. To see all the articles in the series, go to https://links.lww.com/AJN/A204. [ABSTRACT FROM AUTHOR]

Editor's note: This is the 12th article in a series on clinical research by nurses. The series is designed to give nurses the knowledge and skills they need to participate in research, step by step. Each column will present the concepts that underpin evidence-based practice—from research design to data interpretation. To see all the articles in the series, go to https://links.lww.com/AJN/A204. This article, one in a series on clinical research by nurses, explores the rich tradition of interpretive qualitative research practices, including phenomenology, grounded theory, ethnography, and case study. [ABSTRACT FROM AUTHOR]

Editor's note: This is the 10th article in a series on clinical research by nurses. The series is designed to give nurses the knowledge and skills they need to participate in research, step by step. Each column will present the concepts that underpin evidence-based practice—from research design to data interpretation. The articles will be accompanied by a podcast offering more insight and context from the authors. To see all the articles in the series, go to https://links.lww.com/AJN/A204. This article, one in a series on clinical research by nurses, reviews the use of diagnostic and screening tests and tools in nursing research and clinical practice. [ABSTRACT FROM AUTHOR]

Editor's note: This is the ninth article in a series on clinical research by nurses. The series is designed to give nurses the knowledge and skills they need to participate in research, step by step. Each column will present the concepts that underpin evidence-based practice—from research design to data interpretation. The articles will be accompanied by a podcast offering more insight and context from the authors. To see all the articles in the series, go to https://links.lww.com/AJN/A204. This article—one in a series on clinical research by nurses—discusses the alignment of research goals with secondary data sources, explores sources of publicly available secondary data that might be of interest to nurse researchers, and outlines the costs and benefits of using secondary data. [ABSTRACT FROM AUTHOR]

Editor's note: This is the eighth article in a series on clinical research by nurses. The series is designed to give nurses the knowledge and skills they need to participate in research, step by step. Each column will present the concepts that underpin evidence-based practice—from research design to data interpretation. The articles will be accompanied by a podcast offering more insight and context from the authors. To see all the articles in the series, go to https://links.lww.com/AJN/A204. [ABSTRACT FROM AUTHOR]

The article focuses on the Measurement in Nursing Research. Topics discussed include quantitative research examines associations between research variables as measured through numerical analysis, where study effects (outcomes) are analyzed using statistical technique; and Qualitative research explores research questions through an analysis of nonnumerical data sources and reports outcomes as themes or concepts that describe a phenomenon or experience.

The article focuses on how nurses need to know about types of probability and nonprobability sampling. Topics include the researchers attempt to align the study sample with the target population on as many characteristics as possible, and the methodology influences how well the study represents the target population, and thereby affects the generalizability of the study.