Is literature search training for medical students and residents effective? a literature review.

OBJECTIVES: This literature review examines the effectiveness of literature searching skills instruction for medical students or residents, as determined in studies that either measure learning before and after an intervention or compare test and control groups. The review reports on the instruments used to measure learning and on their reliability and validity, where available. Finally, a summary of learning outcomes is presented. METHODS: Fifteen studies published between 1998 and 2011 were identified for inclusion in the review. The selected studies all include a description of the intervention, a summary of the test used to measure learning, and the results of the measurement. RESULTS: Instruction generally resulted in improvement in clinical question writing, search strategy construction, article selection, and resource usage. CONCLUSION: Although the findings of most of the studies indicate that the current instructional methods are effective, the study designs are generally weak, there is little evidence that learning persists over time, and few validated methods of skill measurement have been developed.

Improving perceived and actual text difficulty for health information consumers using semi-automated methods.

We are developing algorithms for semi-automated simplification of medical text. Based on lexical and grammatical corpus analysis, we identified a new metric, term familiarity, to help estimate text difficulty. We developed an algorithm that uses term familiarity to identify difficult text and select easier alternatives from lexical resources such as WordNet, UMLS and Wiktionary. Twelve sentences were simplified to measure perceived difficulty using a 5-point Likert scale. Two documents were simplified to measure actual difficulty by posing questions with and without the text present (information understanding and retention). We conducted a user study by inviting participants (N=84) via Amazon Mechanical Turk. There was a significant effect of simplification on perceived difficulty (p<.001). We also saw slightly improved understanding with better question-answering for simplified documents but the effect was not significant (p=.097). Our results show how term familiarity is a valuable component in simplifying text in an efficient and scalable manner.

New roles: professional staff sharing between a hospital and an academic library.

Childrens Hospital Los Angeles is a pediatric hospital and research institute affiliated with the Keck School of Medicine of the University of Southern California (USC). Historically, the library at Childrens Hospital was staffed by a hospital-employed librarian. In 1999, the library position was outsourced to USC's Norris Medical Library. The new position is staffed by a librarian who divides her time equally between two locations: the Childrens Hospital Library and the Norris Medical Library. This staff sharing arrangement has three primary goals: increase the collaboration between the libraries; improve access to resources and library staff expertise; and provide faster document delivery service to the Childrens Hospital library. This paper presents the details of the position, and addresses the pros and cons for both libraries and the librarian.