University of Michigan, Ann Arbor, MI, USA.
J Med Libr Assoc. 2011 Jan;99(1):77-81. doi: 10.3163/1536-5050.99.1.013.
The objective of this study was to validate an assessment instrument for MEDLINE search strategies at an academic medical center.
Two approaches were used to investigate if the search assessment tool could capture performance differences in search strategy construction. First, data from an evaluation of MEDLINE searches from a pediatric resident's longitudinal assessment were investigated. Second, a cross-section of search strategies from residents in one incoming class was compared with strategies of residents graduating a year later. MEDLINE search strategies formulated by faculty who had been identified as having search expertise were used as a gold standard comparison. Participants were presented with a clinical scenario and asked to identify the search question and conduct a MEDLINE search. Two librarians rated the blinded search strategies.
Search strategy scores were significantly higher for residents who received training than the comparison group with no training. There was no significant difference in search strategy scores between senior residents who received training and faculty experts.
The results provide evidence for the validity of the instrument to evaluate MEDLINE search strategies. This assessment tool can measure improvements in information-seeking skills and provide data to fulfill Accreditation Council for Graduate Medical Education competencies.
本研究旨在验证一个针对学术医学中心的 MEDLINE 搜索策略评估工具。
采用两种方法来研究搜索评估工具是否可以捕捉到搜索策略构建中的性能差异。首先,调查了对儿科住院医师纵向评估中的 MEDLINE 搜索的评估数据。其次,将一个年级的住院医师的横断面搜索策略与一年后毕业的住院医师的策略进行比较。使用被确定为具有搜索专业知识的教员制定的 MEDLINE 搜索策略作为金标准比较。参与者被提供一个临床场景,并要求确定搜索问题并进行 MEDLINE 搜索。两名图书管理员对盲法搜索策略进行评分。
接受培训的住院医师的搜索策略得分明显高于未接受培训的对照组。接受培训的高级住院医师与教员专家之间的搜索策略得分没有显著差异。
结果为评估 MEDLINE 搜索策略的工具提供了有效性证据。该评估工具可以衡量信息搜索技能的提高,并提供数据以满足研究生医学教育认证委员会的能力要求。