Volume 16, 2021 DESCRIBING POPULATIONS AND SAMPLES IN DOCTORAL STUDENT RESEARCH Alex Casteel* Grand Canyon University, Phoenix,
[email protected] AZ, USA Nancy L. Bridier Grand Canyon University, Phoenix,
[email protected] AZ, USA * Corresponding author ABSTRACT Aim/Purpose The purpose of this article is to present clear definitions of the population structures essential to research, to provide examples of how these structures are described within research, and to propose a basic structure that novice research- ers may use to ensure a clearly and completely defined population of interest and sample from which they will collect data. Background Novice researchers, especially doctoral students, experience challenges when de- scribing and distinguishing between populations and samples. Clearly defining and describing research structural elements, to include populations and the sam- ple, provides needed scaffolding to doctoral students. Methodology The systematic review of 65 empirical research articles and research texts pro- vided peer-reviewed support for presenting consistent population- and sample- related definitions and exemplars. Contribution This article provides clear definitions of the population structures essential to research, with examples of how these structures, beginning with the unit of analysis, are described within research. With this defined, we examine the popu- lation subsets and what characterizes them. The proposed writing structure pro- vides doctoral students a model for developing the relevant population and sample descriptions in their dissertations and other research. Findings The article describes that although many definitions and uses are relatively con- sistent within the literature, there are epistemological differences between re- search designs that do not allow for a one-size-fits-all definition for all terms.