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Stop chasing unicorns: setting reasonable expectations for the impact of library instruction programs (and other library services) on student success
Performance Measurement and Metrics Pub Date : 2017-07-10 , DOI: 10.1108/pmm-05-2017-0025
Laura W. Gariepy , Bettina Peacemaker , Valeriana Colon

Purpose The purpose of this paper is to discuss the importance of selecting “well-matched” independent and dependent variables in quantitative research to maximize the possibility of detecting impact of library services on indicators of student success. The paper introduces the concept of sensitivity, which is the extent to which a measure will detect change in the thing being measured. Design/methodology/approach To make the case, the authors use the impact of amount of library instruction received on Grade Point Average (GPA) as an example, explaining a correlational research study at their institution. However, the emphasis of the paper is on the conceptual importance of sensitivity in variable selection in quantitative studies of all types. Findings After finding no statistically significant relationship between the amount of library instruction received and GPA, the authors determined that GPA was not a sensitive enough variable to detect the impact of a few class sessions taught by a librarian throughout students entire undergraduate career. Based on the findings and the literature, the authors conclude that the practice of selecting “insensitive” dependent variables that are unlikely to detect impact of the independent variable is a common practice in the library assessment literature. Originality/value In an era where bigger is better when it comes to demonstrating impact of library services, this paper argues that libraries sometimes diminish their ability to illustrate their contributions to student success by choosing large scale indicators of student success as independent variables which fail to detect the impact of library services.

中文翻译:

停止追逐独角兽:对图书馆教学计划(和其他图书馆服务)对学生成功的影响设定合理的期望

目的本文的目的是讨论在定量研究中选择“匹配良好”的自变量和因变量的重要性,以最大程度地检测出图书馆服务对学生成功指标的影响。本文介绍了敏感度的概念,这是一种措施可以检测被测物变化的程度。设计/方法/方法为了说明这一点,作者以收到的图书馆指导数量对平均绩点(GPA)的影响为例,解释了所在机构的相关研究。但是,本文的重点是在所有类型的定量研究中变量选择中敏感性的概念重要性。研究结果在发现收到的图书馆指导书数量与GPA之间没有统计学上的显着联系后,作者认为GPA并不是足够敏感的变量,无法检测出图书馆员在整个本科生职业生涯中的几次课堂教学的影响。基于这些发现和文献,作者得出结论,选择不太可能检测到自变量影响的“不敏感”因变量的做法是图书馆评估文献中的常见做法。独创性/价值在一个时代,在展示图书馆服务的影响方面,越大越好,
更新日期:2017-07-10
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