416 The Professional Counselor | Volume 10, Issue 4 a focused understanding of coverage of the CACREP core areas, the framework employed within this study conceptualizes each core area as a domain with two distinct differences: (a) distinguishing between leadership and advocacy in separate domains and (b) inclusion of professional identity as its own domain. The domains of our framework included Professional Identity, Supervision, Counseling, Teaching, Research, Leadership, and Advocacy. By systematically mapping the research conducted in each area of counselor education, we aimed to identify existing gaps in knowledge as a means to focus future research efforts. In this scoping review, the primary research question was “What is the coverage of the 2016 CACREP doctoral standards within the research over the past 15 years?” Research subquestions included (a) How many studies “fit” into each of the doctoral standard domains? (b) What frequency trends were present within the data related to type of research (qualitative, quantitative, mixed-methods)? (c) What publication trends were present within the data related to (i) year of publication, (ii) profession-based affiliation of the publishing journal, and (iii) the publishing journal? and (d) What other foci emerged that were not addressed by the CACREP 2016 doctoral program standards? Methods In order to address the primary research question and related subquestions in a systematic way, the Preferred Reporting Items for Systematic Review and Meta-Analysis Protocol (PRISMA-P; Moher et al., 2015) was considered. The PRISMA-P articulates critical components of a systematic review and aims to “reduce arbitrariness in decision-making” (Moher et al., 2015, p. 1) by facilitating a priori guidelines—with a goal of replicability. However, given the general-focus nature of the research question, the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews (PRISMA-ScR; Tricco et al., 2018) was more appropriate. The PRISMA-ScR is an extension of the PRISMA-P with a broader focus on mapping “evidence on a topic and identify[ing] main concepts, theories, sources, and knowledge gaps” (Tricco et al., 2018, p. 467). The following steps, or items, of the PRISMA-ScR are described further in subsequent sections, including: primary and sub-research questions (Item 4), eligibility criteria (Item 5), exclusion criteria (Item 6), database sources (Item 7), search strategy (Item 8), data charting process (Item 10), data items (Item 11), and synthesis of results (Item 14). Items of the protocol not specifically listed here are satisfied by structural elements of this article (e.g., title [Item 1] and rationale [Item 3]). Eligibility Criteria For the present study, articles were only considered eligible for inclusion if they had been published in a peer-reviewed journal between 2005–2019. To be included in the study, articles were required to be research-based with an identified methodology (i.e., quantitative, qualitative, mixed-methods), primarily focused on some aspect of counselor education doctoral study (e.g., program, student, faculty, outcomes, process), and published in the English language. Articles were considered primarily focused on counselor education doctoral study if their research questions, study design, and implications directly bore relevance to the scholarship of doctoral counselor education. Excluded from the study were published dissertation work, magazines, conference proceedings, and other non–peer-reviewed publications. Position, policy, or practice pieces; case studies; conceptual articles; and theoretical articles also were excluded. The primary focus of the study could not be outside of counselor education doctoral study. Information Sources To identify articles for inclusion, the following databases were searched: PubMed, ERIC, GaleOneFile, and PsycINFO. We also utilized reference review (backward snowballing) as an additional information source (Jalali &Wohlin, 2012; Skoglund & Runeson, 2009).