An independent assessment of the unidimensionality, reliability, validity and factor structure of the LibQUAL+™ scale

Miguel Morales, Riadh Ladhari, Javier Reynoso, Rosario Toro and Cesar Sepulveda

The Service Industries Journal, 2012, vol. 32, issue 16, 2585-2605

Abstract: This empirical study provides a thorough measurement analysis of the LibQUAL+™ scale for measuring library service quality. In particular, the study assesses the unidimensionality of the scale, the scale's psychometric properties and its factor structure. Data were gathered using a self-administered questionnaire distributed to a sample of university library users: 189 in Canada and 374 in Mexico. Using confirmatory factor analysis (CFA), the study confirms the assumption of unidimensionality in only two of the three current sub-dimensions of the scale. The results of this study also show that the LibQUAL+™ scale consists of four dimensions. The remainder of the CFA results in the study provides strong support for the general reliability and validity of the four-dimensional structure.

Date: 2012
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DOI: 10.1080/02642069.2011.593167

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