Development and validation of a modified LibQUAL scale in health sciences libraries: application of Structural Equation Modeling.

IF 2.9 4区 医学 Q1 INFORMATION SCIENCE & LIBRARY SCIENCE Journal of the Medical Library Association Pub Date : 2023-10-02 DOI:10.5195/jmla.2023.1348
Sirous Panahi, Azam Bazrafshani, Abbas Mirzaie
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Abstract

Objective: The application of structural equation modeling (SEM), a statistical modeling tool for scale construction and development, is becoming increasingly popular in the health sciences librarianship and information science research. This study explores the application of SEM to health science libraries by describing the development and validation of a modified LibQUAL scale within an Iranian health sciences library setting.

Methods: A literature search was performed across several information sources to identify candidate items to be included in the primary questionnaire. After translation, linguistic validation, and a pilot study, two cross-sectional studies were performed. SEM modeling framework was used for the assessment of the reliability and validity of the modified LibQUAL scale. The internal consistency of the scale was evaluated by measuring Cronbach's alpha coefficient and composite reliability. Exploratory and confirmatory factor analyses were used for the evaluation of the construct validity of the scale. Smart-PLS software was used for statistical modeling.

Results: Composite reliability and Cronbach's alpha coefficient for each scale ranged between 0.90 and 0.95, indicating adequate internal consistency with the LibQUAL scale. Confirmatory factor analysis confirmed the three-factor model of the LibQUAL scale. The convergent validity of the scale was supported, as the average variances extracted for all proposed factors were above 0.50. The discriminant validity was also confirmed using Fornel and Larcker and Heterotrait-Monotrait Ratio (HTMT) methods.

Conclusion: Evaluation of psychometric properties of the translated and locally modified LibQUAL in the Persian language indicated adequate reliability, factorial validity, and stability of this instrument for Iranian health sciences libraries.

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健康科学图书馆中修改的LibQUAL量表的开发和验证:结构方程建模的应用。
目的:结构方程建模(SEM)作为一种用于规模构建和发展的统计建模工具,在健康科学图书馆和信息科学研究中的应用越来越受欢迎。本研究通过描述伊朗健康科学图书馆环境中修改的LibQUAL量表的开发和验证,探索SEM在健康科学图书馆中的应用。方法:在多个信息来源中进行文献检索,以确定主要问卷中的候选项目。在翻译、语言验证和试点研究之后,进行了两项横断面研究。SEM建模框架用于评估修改后的LibQUAL量表的信度和有效性。通过测量Cronbachα系数和综合信度来评估量表的内部一致性。探索性和验证性因素分析用于评估量表的结构有效性。智能PLS软件用于统计建模。结果:每个量表的综合信度和Cronbachα系数在0.90和0.95之间,表明与LibQUAL量表具有足够的内部一致性。验证性因素分析证实了LibQUAL量表的三因素模型。该量表的收敛有效性得到了支持,因为为所有提出的因素提取的平均方差都在0.50以上。使用Fornel和Larcker以及异质性单性状比率(HTMT)方法也证实了判别有效性。结论:对波斯语翻译和局部修改的LibQUAL的心理测量特性的评估表明,该工具对伊朗健康科学图书馆具有足够的可靠性、析因有效性和稳定性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of the Medical Library Association
Journal of the Medical Library Association INFORMATION SCIENCE & LIBRARY SCIENCE-
CiteScore
4.10
自引率
10.00%
发文量
39
审稿时长
26 weeks
期刊介绍: The Journal of the Medical Library Association (JMLA) is an international, peer-reviewed journal published quarterly that aims to advance the practice and research knowledgebase of health sciences librarianship. The most current impact factor for the JMLA (from the 2007 edition of Journal Citation Reports) is 1.392.
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