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✪ Successful ingredients of effective Collaborative Care programs in low- and middle-income countries: A rapid review

Authors:

Jessica Whitfield, Shanise Owens, Amritha Bhat, Bradford Felker, Teresa Jewell & Lydia Chwastiak

University of Washington affiliated authors are displayed in bold.

✪ Open Access

Published: March 2023

Read the full text in the open access journal Cambridge University Press

Abstract:

Integrating mental health care in primary healthcare settings is a compelling strategy to address the mental health treatment gap in low- and middle-income countries (LMICs). Collaborative Care is the integrated care model with the most evidence supporting its effectiveness, but most research has been conducted in high-income countries. Efforts to implement this complex multi-component model at scale in LMICs will be enhanced by understanding the model components that have been effective in LMIC settings.

Following Cochrane Rapid Reviews Methods Group recommendations, we conducted a rapid review to identify studies of the effectiveness of Collaborative Care for priority adult mental disorders of mhGAP (mood and anxiety disorders, psychosis, substance use disorders and epilepsy) in outpatient medical settings in LMICs. Article screening and data extraction were performed using Covidence software. Data extraction by two authors utilized a checklist of key components of effective interventions. Information was aggregated to examine how frequently the components were applied.

Our search yielded 25 articles describing 20 Collaborative Care models that treated depression, anxiety, schizophrenia, alcohol use disorder or epilepsy in nine different LMICs. Fourteen of these models demonstrated statistically significantly improved clinical outcomes compared to comparison groups. Successful models shared key structural and process-of-care elements: a multi-disciplinary care team with structured communication; standardized protocols for evidence-based treatments; systematic identification of mental disorders, and a stepped-care approach to treatment intensification. There was substantial heterogeneity across studies with respect to the specifics of model components, and clear evidence of the importance of tailoring the model to the local context.

This review provides evidence that Collaborative Care is effective across a range of mental disorders in LMICs. More work is needed to demonstrate population-level and longer-term outcomes, and to identify strategies that will support successful and sustained implementation in routine clinical settings.

**This abstract is posted with permission under the Creative Commons Attribution 4.0 International License**

✪ Measuring characteristics of individuals: An updated systematic review of instruments’ psychometric properties

Authors:

Cameo Stanick, Heather Halko, Kayne Mettert, Caitlin Dorsey, Joanna Moullin, Bryan Weiner, Byron Powell, and Cara C. Lewis

University of Washington affiliated authors are displayed in bold.

✪ Open Access

Published: March 2021

Read the full text in the open access journal Implementation Research and Practice

Abstract:

Background

Identification of psychometrically strong implementation measures could (1) advance researchers’ understanding of how individual characteristics impact implementation processes and outcomes, and (2) promote the success of real-world implementation efforts. The current study advances the work that our team published in 2015 by providing an updated and enhanced systematic review that identifies and evaluates the psychometric properties of implementation measures that assess individual characteristics.

Methods

A full description of our systematic review methodology, which included three phases, is described in a previously published protocol paper. Phase I focused on data collection and involved search string generation, title and abstract screening, full-text review, construct assignment, and measure forward searches. During Phase II, we completed data extraction (i.e., coding psychometric information). Phase III involved data analysis, where two trained specialists independently rated each measurement tool using our psychometric rating criteria.

Results

Our team identified 124 measures of individual characteristics used in mental or behavioral health research, and 123 of those measures were deemed suitable for rating using Psychometric and Pragmatic Evidence Rating Scale. We identified measures of knowledge and beliefs about the intervention (n = 76), self-efficacy (n = 24), individual stage of change (n = 2), individual identification with organization (n = 7), and other personal attributes (n = 15). While psychometric information was unavailable and/or unreported for many measures, information about internal consistency and norms were the most commonly identified psychometric data across all individual characteristics’ constructs. Ratings for all psychometric properties predominantly ranged from “poor” to “good.”

Conclusion

The majority of research that develops, uses, or examines implementation measures that evaluate individual characteristics does not include the psychometric properties of those measures. The development and use of psychometric reporting standards could advance the use of valid and reliable tools within implementation research and practice, thereby enhancing the successful implementation and sustainment of evidence-based practice in community care.

Plain Language Summary

Measurement is the foundation for advancing practice in health care and other industries. In the field of implementation science, the state of measurement is only recently being targeted as an area for improvement, given that high-quality measures need to be identified and utilized in implementation work to avoid developing another research to practice gap. For the current study, we utilized the Consolidated Framework for Implementation Research to identify measures related to individual characteristics’ constructs, such as knowledge and beliefs about the intervention, self-efficacy, individual identification with the organization, individual stage of change, and other personal attributes. Our review showed that many measures exist for certain constructs (e.g., measures related to assessing providers’ attitudes and perceptions about evidence-based practice interventions), while others have very few (e.g., an individual’s stage of change). Also, we rated measures for their psychometric strength utilizing an anchored rating system and found that most measures assessing individual characteristics are in need of more research to establish their evidence of quality. It was also clear from our results that frequency of use/citations does not equate to high quality, psychometric strength. Ultimately, the state of the literature has demonstrated that assessing individual characteristics of implementation stakeholders is an area of strong interest in implementation work. It will be important for future research to focus on clearly delineating the psychometric properties of existing measures for saturated constructs, while for the others the emphasis should be on developing new, high-quality measures and make these available to stakeholders.

**This abstract is posted with permission under the Creative Commons Attribution 4.0 International License**

✪ Measuring readiness for implementation: A systematic review of measures’ psychometric and pragmatic properties

Authors:

Bryan J. Weiner, Kayne D. Mettert, Caitlin N. Dorsey, Elspeth A. Nolen, Cameo Stanick, Byron J. Powell, & Cara C. Lewis

University of Washington affiliated authors are displayed in bold.

✪ Open Access

Published: August 2020

Read the full text in the open access journal Implementation Research and Practice

Abstract:

Background

Systematic measure reviews can facilitate advances in implementation research and practice by locating reliable, valid, pragmatic measures; identifying promising measures needing refinement and testing; and highlighting measurement gaps. This review identifies and evaluates the psychometric and pragmatic properties of measures of readiness for implementation and its sub-constructs as delineated in the Consolidated Framework for Implementation Research: leadership engagement, available resources, and access to knowledge and information.

Methods

The systematic review methodology is described fully elsewhere. The review, which focused on measures used in mental or behavioral health, proceeded in three phases. Phase I, data collection, involved search string generation, title and abstract screening, full text review, construct assignment, and cited citation searches. Phase II, data extraction, involved coding relevant psychometric and pragmatic information. Phase III, data analysis, involved two trained specialists independently rating each measure using Psychometric and Pragmatic Evidence Rating Scales (PAPERS). Frequencies and central tendencies summarized information availability and PAPERS ratings.

Results

Searches identified 9 measures of readiness for implementation, 24 measures of leadership engagement, 17 measures of available resources, and 6 measures of access to knowledge and information. Information about internal consistency was available for most measures. Information about other psychometric properties was often not available. Ratings for internal consistency were “adequate” or “good.” Ratings for other psychometric properties were less than “adequate.” Information on pragmatic properties was most often available regarding cost, language readability, and brevity. Information was less often available regarding training burden and interpretation burden. Cost and language readability generally exhibited “good” or “excellent” ratings, interpretation burden generally exhibiting “minimal” ratings, and training burden and brevity exhibiting mixed ratings across measures.

Conclusion

Measures of readiness for implementation and its sub-constructs used in mental health and behavioral health care are unevenly distributed, exhibit unknown or low psychometric quality, and demonstrate mixed pragmatic properties. This review identified a few promising measures, but targeted efforts are needed to systematically develop and test measures that are useful for both research and practice.

Plain language abstract

Successful implementation of effective mental health or behavioral health treatments in service delivery settings depends in part on the readiness of the service providers and administrators to implement the treatment; the engagement of organizational leaders in the implementation effort; the resources available to support implementation, such as time, money, space, and training; and the accessibility of knowledge and information among service providers about the treatment and how it works. It is important that the methods for measuring these factors are dependable, accurate, and practical; otherwise, we cannot assess their presence or strength with confidence or know whether efforts to increase their presence or strength have worked. This systematic review of published studies sought to identify and evaluate the quality of questionnaires (referred to as measures) that assess readiness for implementation, leadership engagement, available resources, and access to knowledge and information. We identified 56 measures of these factors and rated their quality in terms of how dependable, accurate, and practical they are. Our findings indicate there is much work to be done to improve the quality of available measures; we offer several recommendations for doing so.

**This abstract is posted with permission under the Creative Commons Attribution 4.0 International License**

✪ Measuring implementation outcomes: An updated systematic review of measures’ psychometric properties

Authors:

Kayne Mettert, Cara C. Lewis, Caitlin Dorsey, Heather Halko, & Bryan J. Weiner

University of Washington affiliated authors are displayed in bold.

✪ Open Access

Published: August 2020

Read the full text in the open access journal Implementation Research and Practice

Abstract:

Background

Systematic reviews of measures can facilitate advances in implementation research and practice by locating reliable and valid measures and highlighting measurement gaps. Our team completed a systematic review of implementation outcome measures published in 2015 that indicated a severe measurement gap in the field. Now, we offer an update with this enhanced systematic review to identify and evaluate the psychometric properties of measures of eight implementation outcomes used in behavioral health care.

Methods

The systematic review methodology is described in detail in a previously published protocol paper and summarized here. The review proceeded in three phases. Phase I, data collection, involved search string generation, title and abstract screening, full text review, construct assignment, and measure forward searches. Phase II, data extraction, involved coding psychometric information. Phase III, data analysis, involved two trained specialists independently rating each measure using PAPERS (Psychometric And Pragmatic Evidence Rating Scales).

Results

Searches identified 150 outcomes measures of which 48 were deemed unsuitable for rating and thus excluded, leaving 102 measures for review. We identified measures of acceptability (N = 32), adoption (N = 26), appropriateness (N = 6), cost (N = 31), feasibility (N = 18), fidelity (N = 18), penetration (N = 23), and sustainability (N = 14). Information about internal consistency and norms were available for most measures (59%). Information about other psychometric properties was often not available. Ratings for internal consistency and norms ranged from “adequate” to “excellent.” Ratings for other psychometric properties ranged mostly from “poor” to “good.”

Conclusion

While measures of implementation outcomes used in behavioral health care (including mental health, substance use, and other addictive behaviors) are unevenly distributed and exhibit mostly unknown psychometric quality, the data reported in this article show an overall improvement in availability of psychometric information. This review identified a few promising measures, but targeted efforts are needed to systematically develop and test measures that are useful for both research and practice.

Plain language abstract

When implementing an evidence-based treatment into practice, it is important to assess several outcomes to gauge how effectively it is being implemented. Outcomes such as acceptability, feasibility, and appropriateness may offer insight into why providers do not adopt a new treatment. Similarly, outcomes such as fidelity and penetration may provide important context for why a new treatment did not achieve desired effects. It is important that methods to measure these outcomes are accurate and consistent. Without accurate and consistent measurement, high-quality evaluations cannot be conducted. This systematic review of published studies sought to identify questionnaires (referred to as measures) that ask staff at various levels (e.g., providers, supervisors) questions related to implementation outcomes, and to evaluate the quality of these measures. We identified 150 measures and rated the quality of their evidence with the goal of recommending the best measures for future use. Our findings suggest that a great deal of work is needed to generate evidence for existing measures or build new measures to achieve confidence in our implementation evaluations.

**This abstract is posted with permission under the Creative Commons Attribution 4.0 International License**

✪ A targeted systematic review of cost analyses for implementation of simulation-based education in healthcare

Authors:

Daniel S Hippe, Rachel A Umoren, Alex McGee, Sherri L Bucher, Brian W Bresnahan

University of Washington affiliated authors are displayed in bold.

✪ Open Access

Published: March 2020

Read the full text in the open access journal SAGE Open Medicine

Abstract:

Over the past two decades, there has been an increase in the use of simulation-based education for training healthcare providers in technical and non-technical skills. Simulation education and research programs have mostly focused on the impact on clinical knowledge and improvement of technical skills rather than on cost. To study and characterize existing evidence to inform multi-stakeholder investment decisions, we performed a systematic review of the literature on costs in simulation-based education in medicine in general and in neonatal resuscitation as a particular focus.

We conducted a systematic literature search of the PubMed database using two targeted queries. The first searched for cost analyses of healthcare simulation-based education more broadly, and the second was more narrowly focused on cost analyses of neonatal resuscitation training. The more general query identified 47 qualified articles. The most common specialties for education interventions were surgery (51%); obstetrics, gynecology, or pediatrics (11%); medicine, nursing, or medical school (11%); and urology (9%), accounting for over 80% of articles. The neonatal resuscitation query identified five qualified articles. The two queries identified seven large-scale training implementation studies, one in the United States and six in low-income countries. There were two articles each from Tanzania and India and one article each from Zambia and Ghana. Methods, definitions, and reported estimates varied across articles, implying interpretation, comparison, and generalization of program effects are challenging.

More work is needed to understand the costs, processes, and outcomes likely to make simulation-based education programs cost-effective and scalable. To optimize return on investments in training, assessing resource requirements, associated costs, and subsequent outcomes can inform stakeholders about the potential sustainability of SBE programs. Healthcare stakeholders and decision makers will benefit from more transparent, consistent, rigorous, and explicit assessments of simulation-based education program development and implementation costs in low- and high-income countries.

**This abstract is posted with permission under the Creative Commons Attribution 4.0 International License**

✪ Implementation science and stigma reduction interventions in low- and middle-income countries: A systematic review

Authors:

Christopher G. Kemp, Brooke A. Jarrett, Churl-Su Kwon, Lanxin Song, Nathalie Jetté, Jaime C. Sapag, Judith Bass, Laura Murray, Deepa Rao & Stefan Baral

University of Washington affiliated authors are displayed in bold.

✪ Open Access

Published: February 2019

Read the full text in the open access journal BMC Medicine

Abstract:

Background

Interventions to alleviate stigma are demonstrating effectiveness across a range of conditions, though few move beyond the pilot phase, especially in low- and middle-income countries (LMICs). Implementation science offers tools to study complex interventions, understand barriers to implementation, and generate evidence of affordability, scalability, and sustainability. Such evidence could be used to convince policy-makers and donors to invest in implementation. However, the utility of implementation research depends on its rigor and replicability. Our objectives were to systematically review implementation studies of health-related stigma reduction interventions in LMICs and critically assess the reporting of implementation outcomes and intervention descriptions.

Methods

PubMed, CINAHL, PsycINFO, and EMBASE were searched for evaluations of stigma reduction interventions in LMICs reporting at least one implementation outcome. Study- and intervention-level characteristics were abstracted. The quality of reporting of implementation outcomes was assessed using a five-item rubric, and the comprehensiveness of intervention description and specification was assessed using the 12-item Template for Intervention Description and Replication (TIDieR).

Results

A total of 35 eligible studies published between 2003 and 2017 were identified; of these, 20 (57%) used qualitative methods, 32 (91%) were type 1 hybrid effectiveness-implementation studies, and 29 (83%) were evaluations of once-off or pilot implementations. No studies adopted a formal theoretical framework for implementation research. Acceptability (20, 57%) and feasibility (14, 40%) were the most frequently reported implementation outcomes. The quality of reporting of implementation outcomes was low. The 35 studies evaluated 29 different interventions, of which 18 (62%) were implemented across sub-Saharan Africa, 20 (69%) focused on stigma related to HIV/AIDS, and 28 (97%) used information or education to reduce stigma. Intervention specification and description was uneven.

Conclusion

Implementation science could support the dissemination of stigma reduction interventions in LMICs, though usage to date has been limited. Theoretical frameworks and validated measures have not been used, key implementation outcomes like cost and sustainability have rarely been assessed, and intervention processes have not been presented in detail. Adapted frameworks, new measures, and increased LMIC-based implementation research capacity could promote the rigor of future stigma implementation research, helping the field deliver on the promise of stigma reduction interventions worldwide.

**This abstract is posted with permission under the Creative Commons Attribution 4.0 International License**

✪ Middle managers’ role in implementing evidence-based practices in healthcare: A systematic review

Authors:

Sarah Birken, Alecia Clary, Amir Alishahi Tabriz, Kea Turner, Rosemary Meza, Alexandra Zizzi, Madeline Larson, Jennifer Walker & Martin Charns

University of Washington affiliated authors are displayed in bold.

Published: December 2018

Read the full text in the open access journal Implementation Science

Abstract:

Background

Middle managers are in a unique position to promote the implementation of evidence-based practices (EBPs) in healthcare organizations, yet knowledge of middle managers’ role in implementation and determinants (e.g., individual-, organizational-, and system-level factors) which influence their role remains fractured, spanning decades and disciplines. To synthesize understanding, we undertook a systematic review of studies of middle managers’ role in healthcare EBP implementation and determinants of that role.

Methods

We searched MEDLINE/PubMed and Business Source Complete (Ebsco) for literature on middle managers’ role in healthcare EBP implementation and its determinants. We abstracted data from records that met inclusion criteria (i.e., written in English, peer-reviewed, and reporting either a protocol or results of an empirical study) into a matrix for analysis. We summarized categorical variables using descriptive statistics. To analyze qualitative data, we used a priori codes and then allowed additional themes to emerge.

Results

One hundred five records, spanning across several countries and healthcare settings and relating to a range of EBPs, met our inclusion criteria. Studies of middle managers’ role in healthcare EBP implementation and its determinants substantially increased from 1996 to 2015. Results from included studies suggest that middle managers shape implementation climate in addition to fulfilling the four roles hypothesized in extant theory of middle managers’ role in implementation. However, extant studies offered little understanding of determinants of middle managers’ role.

Conclusions

Our findings suggest that middle managers may play an important role in facilitating EBP implementation. Included studies offered little understanding regarding the relative importance of various roles, potential moderators of the relationship between middle managers’ roles and EBP implementation, or determinants of middle managers’ role in EBP implementation. Future studies should seek to understand determinants and moderators of middle managers’ role. Clearer understanding may facilitate the translation of evidence into practice.

**This abstract is posted with permission under the Creative Commons Attribution 4.0 International License**

✪ Operationalizing the ‘pragmatic’ measures construct using a stakeholder feedback and a multi-method approach

Authors:

Cameo F. Stanick, Heather M. Halko, Caitlin N. Dorsey, Bryan J. Weiner, Byron J. Powell, Lawrence A. Palinkas & Cara C. Lewis

University of Washington affiliated authors are displayed in bold.

Published: November 2018

Read the full text in the open access journal BMC Health Services Research

Abstract:

Context

Implementation science measures are rarely used by stakeholders to inform and enhance clinical program change. Little is known about what makes implementation measures pragmatic (i.e., practical) for use in community settings; thus, the present study’s objective was to generate a clinical stakeholder-driven operationalization of a pragmatic measures construct.

Evidence acquisition

The pragmatic measures construct was defined using: 1) a systematic literature review to identify dimensions of the construct using PsycINFO and PubMed databases, and 2) interviews with an international stakeholder panel (N = 7) who were asked about their perspectives of pragmatic measures.

Evidence synthesis

Combined results from the systematic literature review and stakeholder interviews revealed a final list of 47 short statements (e.g., feasible, low cost, brief) describing pragmatic measures, which will allow for the development of a rigorous, stakeholder-driven conceptualization of the pragmatic measures construct.

Conclusions

Results revealed significant overlap between terms related to the pragmatic construct in the existing literature and stakeholder interviews. However, a number of terms were unique to each methodology. This underscores the importance of understanding stakeholder perspectives of criteria measuring the pragmatic construct. These results will be used to inform future phases of the project where stakeholders will determine the relative importance and clarity of each dimension of the pragmatic construct, as well as their priorities for the pragmatic dimensions. Taken together, these results will be incorporated into a pragmatic rating system for existing implementation science measures to support implementation science and practice.

**This abstract is posted with permission under the Creative Commons Attribution 4.0 International License**

✪ An updated protocol for a systematic review of implementation-related measures

Authors:

Cara C. Lewis, Kayne D. Mettert, Caitlin N. Dorsey, Ruben G. Martinez, Bryan J. Weiner, Elspeth Nolen, Cameo Stanick, Heather Halko and Byron J. Powell

University of Washington affiliated authors are displayed in bold.

✪ Open Access

Published: April 2018

Read the full text in the open access journal Systematic Reviews

Abstract:

Background

Implementation science is the study of strategies used to integrate evidence-based practices into real-world settings (Eccles and Mittman, Implement Sci. 1(1):1, 2006). Central to the identification of replicable, feasible, and effective implementation strategies is the ability to assess the impact of contextual constructs and intervention characteristics that may influence implementation, but several measurement issues make this work quite difficult. For instance, it is unclear which constructs have no measures and which measures have any evidence of psychometric properties like reliability and validity. As part of a larger set of studies to advance implementation science measurement (Lewis et al., Implement Sci. 10:102, 2015), we will complete systematic reviews of measures that map onto the Consolidated Framework for Implementation Research (Damschroder et al., Implement Sci. 4:50, 2009) and the Implementation Outcomes Framework (Proctor et al., Adm Policy Ment Health. 38(2):65-76, 2011), the protocol for which is described in this manuscript.

Methods

Our primary databases will be PubMed and Embase. Our search strings will be comprised of five levels: (1) the outcome or construct term; (2) terms for measure; (3) terms for evidence-based practice; (4) terms for implementation; and (5) terms for mental health. Two trained research specialists will independently review all titles and abstracts followed by full-text review for inclusion. The research specialists will then conduct measure-forward searches using the “cited by” function to identify all published empirical studies using each measure. The measure and associated publications will be compiled in a packet for data extraction. Data relevant to our Psychometric and Pragmatic Evidence Rating Scale (PAPERS) will be independently extracted and then rated using a worst score counts methodology reflecting “poor” to “excellent” evidence.

Discussion

We will build a centralized, accessible, searchable repository through which researchers, practitioners, and other stakeholders can identify psychometrically and pragmatically strong measures of implementation contexts, processes, and outcomes. By facilitating the employment of psychometrically and pragmatically strong measures identified through this systematic review, the repository would enhance the cumulativeness, reproducibility, and applicability of research findings in the rapidly growing field of implementation science.

**This abstract is posted with permission under the Creative Commons Attribution 4.0 International License**

Combined use of the Consolidated Framework for Implementation Research (CFIR) and the Theoretical Domains Framework (TDF): a systematic review

Authors:

Sarah A. Birken, Byron J. Powell, Justin Presseau, M. Alexis Kirk, Fabiana Lorencatto, Natalie J. Gould, Christopher M. Shea, Bryan J. Weiner, Jill J. Francis, Yan Yu, Emily Haines and Laura J. Damschroder

University of Washington affiliated authors are displayed in bold.

✪ Open Access

Published: January 2017

Read the full text in the open access journal Implementation Science

Abstract:

Background

Over 60 implementation frameworks exist. Using multiple frameworks may help researchers to address multiple study purposes, levels, and degrees of theoretical heritage and operationalizability; however, using multiple frameworks may result in unnecessary complexity and redundancy if doing so does not address study needs. The Consolidated Framework for Implementation Research (CFIR) and the Theoretical Domains Framework (TDF) are both well-operationalized, multi-level implementation determinant frameworks derived from theory. As such, the rationale for using the frameworks in combination (i.e., CFIR + TDF) is unclear. The objective of this systematic review was to elucidate the rationale for using CFIR + TDF by (1) describing studies that have used CFIR + TDF, (2) how they used CFIR + TDF, and (2) their stated rationale for using CFIR + TDF.

Methods

We undertook a systematic review to identify studies that mentioned both the CFIR and the TDF, were written in English, were peer-reviewed, and reported either a protocol or results of an empirical study in MEDLINE/PubMed, PsycInfo, Web of Science, or Google Scholar. We then abstracted data into a matrix and analyzed it qualitatively, identifying salient themes.

Findings

We identified five protocols and seven completed studies that used CFIR + TDF. CFIR + TDF was applied to studies in several countries, to a range of healthcare interventions, and at multiple intervention phases; used many designs, methods, and units of analysis; and assessed a variety of outcomes. Three studies indicated that using CFIR + TDF addressed multiple study purposes. Six studies indicated that using CFIR + TDF addressed multiple conceptual levels. Four studies did not explicitly state their rationale for using CFIR + TDF.

Conclusions

Differences in the purposes that authors of the CFIR (e.g., comprehensive set of implementation determinants) and the TDF (e.g., intervention development) propose help to justify the use of CFIR + TDF. Given that the CFIR and the TDF are both multi-level frameworks, the rationale that using CFIR + TDF is needed to address multiple conceptual levels may reflect potentially misleading conventional wisdom. On the other hand, using CFIR + TDF may more fully define the multi-level nature of implementation. To avoid concerns about unnecessary complexity and redundancy, scholars who use CFIR + TDF and combinations of other frameworks should specify how the frameworks contribute to their study.

Trial registration

PROSPERO CRD42015027615

**This abstract is posted with permission under the Creative Commons Attribution 4.0 International License**