Comparison of Databases for Complex Evidence Syntheses on Education for the Health Professions

Increased requests for assistance with literature searches on educational topics within the health professions motivated two health science librarians to analyze search function and results in eleven bibliographic databases on questions representing three allied health instructional target populations (patient, caregiver, and future health professionals). Results overlap and relevance were estimated and useful functions and subject headings were examined, as evidence for future search and database recommendations. This research confirmed the authors' hypothesis that PubMed and CINAHL overlapped significantly yet yielded sufficient unique citations to recommend searching both, plus at least one education-specific database. For the six questions researched, psychology and sports medicine databases were less productive.

Librarian and Researcher Assessments of Search Result Relevance: How Well Do They Align?

Conducting comprehensive but efficient literature searches for complex evidence syntheses involves selecting databases that will retrieve the greatest number of relevant results on the question. Lack of a comprehensive single database on allied health educational topics challenges those seeking such literature. In this study, six participants contributed research questions on instructional methods and materials for allied health patients, caregivers, and future health professionals. Two health sciences librarians created search strategies for these questions and searched eleven databases. Both the librarians and the six participants evaluated the search results using a rubric based on PICO to assess extent of alignment between the librarians' and requestors' relevance judgments. Intervention, Outcome, and Assessment Method constituted the most frequent bases for assessments of relevance by both librarians and participants. The librarians were more restrictive in all of their assessments except in a preliminary search yielding twelve citations without abstracts. The study's results could be used to identify effective techniques for reference interviewing, selecting databases, and weeding search results.