Abstract
BackgroundPracticing evidence-based health care is challenging because of overwhelming results presented to practitioners by Google-like Web-scale discovery (WSD) services that index millions of resources while retrieving information based on relevancy algorithms with limited consideration for user information need.ObjectiveOn the basis of the user-oriented theory of information need and following design science principles, this study aimed to develop and evaluate an innovative contextual model for information retrieval from WSD services to improve evidence-based practice (EBP) by health care practitioners.MethodsWe identified problems from literature to support real-world requirements for this study. We used design science research methodology to guide artefact design. We iteratively improved prototype of the context model using artificial formative evaluation. We performed naturalistic summative evaluation using convergent interviewing of health care practitioners and content analysis from a confirmatory focus group consisting of health researchers to evaluate the model’s validity and utility.ResultsThe study iteratively designed and applied the context model to a WSD service to meet 5 identified requirements. All 5 health care practitioners interviewed found the artefact satisfied the 5 requirements to successfully evaluate the model as having validity and utility. Content analysis results from the confirmatory focus group mapped top 5 descriptors per requirement to support a true hypothesis that there is significant discussion among participants to justify concluding that the artefact had validity and utility.ConclusionsThe context model for WSD satisfied all requirements and was evaluated successfully for information retrieval to improve EBP. Outcomes from this study justify further research into the model.
Highlights
This study introduces a contextual approach to research evidence modeled using design science research (DSR) [2] so health care practitioners can improve Evidence-based practice (EBP)
Evaluation Overview Once observations showed sufficient evidence that the prototype as a context layer satisfied R1 to R5 for information retrieved from a Web scale discovery (WSD) compared with its noncontextual state, the instantiation was evaluated in the real world with select health care practitioners using convergent interviewing [30] for a summative evaluation followed by a confirmatory focus group consisting of health researchers
The user is presented with all the filters that are available through the WSD application programming interface (API), and the user context is applied automatically if the frame was borrowed before
Summary
This study introduces a contextual approach to research evidence modeled using design science research (DSR) [2] so health care practitioners can improve EBP. The study, concluded that more support is needed for health care practitioners to use research evidence systems. Electronic resources (e-resources) themselves are classified as journals, books, databases, and clinical decisions support references, and each classification has many associated publishers, vendors, and electronic service providers. At the turn of the 21st century, this problem was solved to an extent by federated search systems; they were unreliable and slow as they connected with each publisher platform in real time, causing users to wait several minutes to see results or miss results entirely when connectors failed [5]
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