Abstract
Purpose:
To improve practices in rapidly changing environments, it is helpful to learn from relevant innovators. This article describes a well-defined and adaptable method for discovering innovative cases that inform best practices or positive/negative deviant research.
Methods:
As part of a national study of innovation in primary care settings, we developed a three-step method for identifying exemplar practices and applied that method to finding a sample of relevant innovators for in-depth case studies from which to draw transportable lessons about improving primary care practice.
Results:
Relevant, information-rich cases are uncovered using cycles of identification, sampling, and assessment. This cycle is repeated at each step of the defined three-step method. Step 1, a scan of the published literature, assesses both the state-of-the-art and the baseline characteristics of relevant cases; Step 2, a scan of practice settings, draws upon the expert knowledge of key informants to identify additional potentially relevant cases; and Step 3, sample refinement, evaluates potential cases for eligibility, purposeful diversity, and information-rich expressions of defined key domains. Using this three-step method, we identified a national cohort of primary care practice innovators. We found the method to be feasible, practical, and highly successful at identifying information-rich practices from which to draw transportable lessons about practice innovation.
Conclusions:
The three-step method outlines an effective sampling strategy for identifying innovation exemplars and information-rich cases that exceed measures of central tendency. By leveraging the collective knowledge of innovators, this method can support dynamic research and foster rapid cycle learning.
Introduction
Innovations in technology, treatments, and evidence-based guidelines have resulted in a myriad of interventions and health-care reform efforts worldwide. These are especially noteworthy with primary care reforms in the National Health Service in the United Kingdom (Blumenthal & Dixon, 2012; Reynolds & McKee, 2012) as well as primary care redesign in Canada, Australia, and the United States (Russell et al., 2017; Starfield & Shi, 2002). Ten years after the National Institutes of Health–inspired jump into translational research and implementation science, health care in the United States continues to be hindered by a time lag between hypothesis, discovery, and meaningful change in practice (Etz, Hahn, Gonzalez, Crabtree, & Stange, 2014; Grimshaw, Eccles, Lavis, Hill, & Squires, 2012; Westfall, Mold, & Fagnan, 2007). In a rapidly evolving environment, innovators and early adopters emerge de novo with important breakthroughs in the delivery of health services seemingly every day (Rogers, 2003).
A growing number of primary care pioneers are transforming the way health care is delivered by creating emergent, practice-appropriate solutions that produce better results at lower costs (Etz et al., 2008; Sinsky et al., 2013). Many of these breakthroughs happen at the local level beyond the reach of typical academic settings or studies and therefore remain both potentially prevalent and hidden, while others emerged as part of demonstration projects (Bitton, Martin, & Landon, 2010). Recently, the identification and careful examination of these successful innovators, or positive deviants, has been proposed (Baxter, Taylor, Kellar, & Lawton, 2016; Bradley et al., 2009).
Practice innovators and early adopters comprise a valuable and largely untapped resource (Bradley et al., 2009). Studies of innovators, or of any information-rich population, generally use a purposeful sampling method to identify unique or exemplar cases (Merriam, 1998; Patton, 2015). The work of Jim Collins exemplifies this approach. His widely read book,
In the United States, Canada, Australia, and Europe, there have been literally hundreds of demonstration projects or interventions focused on improving the quality of care in primary care practices (Bitton et al., 2010; Nutting et al., 2010). Many of these have had negative or ambiguous results (Jaen et al., 2010; Shi et al., 2015). Some of the greatest lessons learned regarding best practices in primary care settings remain hidden in plain sight among unpublished innovators. This article articulates a rigorous, pragmatic, and actionable method to bring those lessons to light. The three-step method allows research teams to identify a sample of information-rich cases, such as practice innovators, as the first crucial step in rapid, relevant research.
Context for Method Development
While working on a study, funded by the Robert Wood Johnson Foundation (RWJF), which focused on the identification and critical examination of U.S. primary care workforce innovations and barriers to their spread (Friedman et al., 2014), it became clear that our intended methodology would not work. Informed by our collective research experience in primary care settings, it was clear when conducting our literature review that many innovations known to the research team were either absent or underrepresented in the literature. Additionally, our review of the literature uncovered no clear guidance regarding how a broad sample of practice exemplars could be found, contacted, and vetted. This identification of a national cohort of exemplar primary care practices posed a logistical and methodological challenge.
Therefore, to our first aim of understanding frontline innovation through the literature, we added a second study focus to learn from creative staffing solutions as found in everyday primary care settings. With this second aim, we sought to identify practices able to pioneer new models of care delivery through innovations that both redefined traditional roles and created new, team-based approaches to primary health care. We intentionally selected practices that reflected a variety of geographic types, organizational types, and sizes that ranged from large health systems to solo and micro practices.
The Three-Step Method
Sampling strategy is an essential, though often underdeveloped, element in health-care delivery studies (Miller, Crabtree, Harrison, & Fennell, 2013). The method described here is comprised of three steps. Each step incorporates cycles of identification, reflective sampling, and assessment, which result in a rigorously developed sample able to support scientific advancement. The method can be altered to fit a study regardless of the size and/or length of the study. In addition to the detailed methodology described below, a concise illustration of the purpose and process associated with each step can be found in Table 1.
Three-Step Method for Identifying Practice Exemplars.
Step 1: Literature-Based Environmental Scan
Step 1 of developing a study sample is conducting an appropriate scan of the published literature. Not all literature reviews must follow the same design; efforts should be made to match the extent and parameters of the literature review with the research questions and time line constraints endemic to the project. The purpose of the literature review is to establish the state-of-the-art scientific knowledge as it relates to a particular topic. Investigating the published universe related to the topic establishes a known baseline and identifies remaining questions and potential opportunities for the development of new knowledge. This baseline informs the use of theoretical sampling in Step 2 by identifying patterns of characteristics likely to be indicative of practice exemplars (Draucker, Martsolf, Ross, & Rusk, 2007).
Careful notes should be taken during the literature review process regarding databases searched, search techniques, and inclusion/exclusion criteria employed. The searching process narrows focus and determines feasibility, thereby establishing the potential scope of the study. Once the preliminary scope is established, it is important to reflect on the match of the identified literature with the research and learning objectives. Narrowing a literature review to make it more manageable risks inadvertently omitting critical projects, questions, and known conversations that are relevant to the topic. Reviewing the constraints of the manuscript sample generated during the literature review allows for the identification of potential gaps in the sample and the opportunity for purposeful sampling to fill such gaps in service of the overall research aims. Key analytic findings are drawn out while assessing the compiled literature review.
Most often, literature findings are reported as identified patterns and commonalities among publications. While this is useful information, it is one step short of a full analysis. Understanding the significance of those patterns and the narratives from which their authority derives is critical for operationalizing lessons learned from the literature review in real-world settings.
The concern with stopping with a literature scan is that every study has limitations. Published studies typically share two common limitations. First, the statement of problem, to which the published findings are a solution, is influenced by the researcher’s intellectual interests and the funder’s strategic priorities. In other words, the solutions are rarely to practice-identified problems (Green, 2006). Second, publication guidelines, such as word limits, may lead to systematic omission of elements critical to an innovation’s success (Westfall et al., 2007). Contextual factors relevant to understanding the fullness of published solutions are likely to remain the lessons learned by the research team alone (Stange & Glasgow, 2013; Tomoaia-Cotisel et al., 2013). A scan of the practice environment is an effective counterbalance to the known limitations of findings accessible through published material. This second environmental scan will generate a list of potential exemplars, identify a set of contextual factors requisite to exemplar practices, and identify distinguishing factors among those exemplars.
Step 2: Practice-Based Environmental Scan
Like the literature-based environmental scan, the scope of the practice-based environmental scan must be responsive to the needs of the research questions and constraints. Without the same opportunity for a key word search as with written works, Step 2 of developing a study sample involves a combination of purposeful and snowball sampling to identify potential practices of interest. It is critical to select the right key informants when designing a successful practice-based environmental scan.
This selection process begins with thought leaders in the area, identified through reputation and publishing history. In addition to their academically relevant knowledge, they are likely to have been exposed to strategies and practices that were never published. They may contribute unpublished gems and known practices with strategies that appeared promising but were ultimately excluded from their study based on research design or resource constraints. They may also provide connections with other thought leaders to whom questions should be addressed. This process can effectively seed the potential pool of exemplars able to best inform study aims.
Just as thought leaders may provide further referrals, potential exemplars may assist in building the sample pool. Many innovators hunger for intellectual and service communities and will have discovered other practices “like them” from which they draw kinship, support, and inspiration. A sampling strategy built through such layers of social networks will engage fewer practices whose solutions are grant-informed or who have previously been the subjects of publication. Two important considerations during this sample-building period include the size of the potential list and the emergent contextual factors that differentiate high performing practices (Stange & Glasgow, 2013). Step 1 helps identify which characteristics potential exemplars should hold in common. Step 2 focuses on characteristics that vary among the sample in ways that will support study validity and future transportability of findings.
Understanding that not all information will be accurate and that not all identified practices will wish study participation, it is important to generate a sample list able to absorb expected reduction during eligibility assessment and attrition during enrollment. While assessing the pool of potential exemplars generated during Step 2, it is necessary to consider the diversity of the sample based on demographics and innovation strategies. The end product from this step will include a composite of practice characteristics, informed by both public and practice domains, that will enable standardization of data elements and maximum learning from practice settings.
Step 3: Sample Refinement
Step 3, sample refinement, is a process of establishing the final fit between the study sample and the research interests. Potential exemplars are evaluated for eligibility and high-quality expression of defined key domains. Having created a large sample of potential practices through an informal but intentional focus on diversity, the researcher(s) must create a tool that is able to standardize the sample selection. This tool should encompass contextual factors thought to be relevant to the phenomena under study (assessed in Step 1) as well as factors known to differentiate practices within the existing pool (assessed in Step 2). It is helpful to create a simple scale that emphasizes clear distinctions in variation among the selected contextual factors. With a focus on exemplary practices, and using Steps 1 and 2 as a guide, a three-level scale that identifies practice expression of key domains as average, better than average, and the top 10% of the sample pool can be created.
Identifying a National Cohort of Practice Exemplars Using the Three-Step Method
Below we demonstrate the application of the three-step method to identify primary care innovations underrepresented in the published literature and the contextual factors most likely to inform transportability. A concise summary of the method as applied in this context can be found in Table 2.
Identifying Exemplars of Workforce Innovation in Primary Care.
Step 1: Primary Care Workforce Innovations in the Published Literature
In order to
Step 2: Generating Sample of Potential Practice Exemplars
In Step 2, we used findings from the literature review to establish a common and defensible baseline for determining whether an identified staffing solution met the threshold for being considered “innovative.” We began our identification of potential exemplar practices by drawing on the insights of key informants: 50 thought leaders found in the literature and a handful of national experts who were known to the research team. In both cases, we asked our key informants for two pieces of information: first, identification of two or three practices they personally knew to be clinically excellent, high-quality settings employing creative staffing solutions and second, identification of two or three colleagues who might also be able to share referrals of known practices. Our
Once we felt we had developed a list able to withstand likely reduction through information cleaning and attrition, we
Step 3: Refinement of Sample Selection
In the third and final step, we conducted 45-min phone interviews with each remaining practice in our potential sample pool. Since every practice included at this point was selected through key informant referral, the interview process was essential in establishing the reliability of referrals and potential fit of an identified practice to our research interests. Conducting phone interviews and standardizing information learned during unstructured interviews through the creation of two-page practice profiles became the
Once checked, the practice profiles were evaluated for six metrics (team, workforce, PB/community unity, performance, sustainability, and overall impression) on a 3-point scale where 3 was
Easy Outcomes and Flexible Adaptations
Using the three-step method, we developed a final national cohort of 151 exemplar primary care practices. Once complete, a panel of national experts reviewed our practice list and member-checked the standardized profiles and metric for scoring. A subset of 30 practices spanning 20 states and representing practices of varying size, ownership, and settings was then selected for inclusion in the RWJF-funded
Discussion
Previously, in a review of the literature on health services delivery, our team identified two crippling gaps between research and practice (Friedman et al., 2014). First, recognized best practices, identified and validated through rigorous scientific studies, are diffused into everyday primary care practice at a frustratingly slow rate (Rogers, 2003). Second,
While our example required individuals with a background in research, the three-step method provides a pragmatic and actionable solution to those interested in generating a robust science for health-care delivery that is organic to context, receptive to nimble adaptation, and informed by those most affected by the outcomes of their work. Depending on the topic of interest, interested parties could include non-research-trained individuals such as patients or patient representatives from advocacy groups.
Footnotes
Declaration of Conflicting Interests
The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
Funding
The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: Robert Wood Johnson Foundation Center for Health Policy (Grant 68461).
