The paper’s methods were shaped around its overall aim: to advance clarity in the language used to describe outcomes of implementation. We convened a working group of implementation researchers to identify concepts for labeling and assessing outcomes of implementation processes. One member of the group was a doctoral student RA who coordinated, conducted, and reported on the literature search and constructed tables reflecting various iterations of the heuristic taxonomy. The RA conducted literature searches using key words and search programs to identify literature on the current state of conceptualization and measurement of these outcomes, primarily in the health and behavioral sciences. We searched in a number of databases with a particular focus on MEDLINE, CINAHL Plus, and PsycINFO. Key search terms included the name of the implementation outcome (e.g., “acceptability,” “sustainability,” etc.) along with relevant synonyms combined with any of the following: innovation, EBP, evidence based practice, and EST. We scanned the titles and abstracts of the identified sources and read the methods and background sections of the studies that measured or attempted to measure implementation outcomes. We also included information from relevant conceptual articles in the development of nominal definitions. Whereas our primary focus was on the implementation of evidence based practices in the health and behavioral sciences, the keyword “innovation” broadened this scope by also identifying studies that focused on other areas such as physical health that may inform implementation of mental health treatments. Because terminology in this field currently reflects widespread inconsistency, we followed leads beyond what our keyword searches “hit” upon. Thus we read additional articles that we found cited by authors whose work we found through our electronic searches. We also conducted searches of CRISP, TAGG, and NIH reporter and studies to identify funded mental health research studies with “implementation” in their titles or abstracts, to identify examples of outcomes pursued in current research.
We used a narrative review approach (Educational Research Review), which is appropriate for summarizing different primary studies and drawing conclusions and interpretation about “what we know,” informed by reviewers’ experiences and existing theories (McPheeters et al. 2006 ; Kirkevoid 1997 (link)). Narrative reviews yield qualitative results, with strengths in capturing diversities and pluralities of understanding (Jones 1997 ). According to McPheeters et al. (2006 ), narrative reviews are best conducted by a team. Members of the working group read and reviewed conceptual and theoretical pieces as well as published reports of implementation research. As a team, we convened recurring meetings to discuss the similarities and dissimilarities. We audio-taped and transcribed meeting discussions, and a designated individual took thorough notes. Transcriptions and notes were posted on a shared computer file for member review, revision, and correction.
Group processes included iterative discussion, checking additional literature for clarification, and subsequent discussion. The aim was to collect and portray, from extant literature, the similarities and differences across investigators’ use of various implementation outcomes and definitions for those outcomes. Discussions often led us to preserve distinctions between terms by maintaining in our “nominated” taxonomy two different implementation outcomes because the literature or our own research revealed possible conceptual distinctions. We assembled the identified constructs in the proposed heuristic taxonomy to portray the current state of vocabulary and conceptualization of terms used to assess implementation outcomes.