Journal
JOURNAL OF BUSINESS RESEARCH
Volume 139, Issue -, Pages 338-353Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jbusres.2021.09.038
Keywords
Travel services; Response behaviors; Measurement invariance; Scale development; Rasch analysis
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Advances in tourism research rely on the development and validation of measurement scales using psychometric techniques, with recent studies applying Rasch analysis to identify limitations and biases in scale development. Despite generally high reliability, some scales may show local dependence and measurement bias, while demographic factors such as ethnicity and gender can impact measurement results.
Advances in tourism research depend on the development and validation of measurement scales using appropriate psychometric techniques. However, scale development practice is dominated by classical test theory, despite its limitations. A Rasch analysis of international travel service performance scales across demographic, customer experience and service provider sub-groups is provided. Scales generally show high reliability, little disordering of the thresholds, and no substantive effects where multidimensionality is present. Some items exhibit limited discriminatory power, local dependence and measurement bias. Measurement invariance violations are prevalent in temporal dimensions where travelers exhibit diverse customer experience profiles. Employee knowledge and safety attributes appear organization-specific. Ethnicity impacts on relational aspects; response behavior regarding personal space is gender specific. Standardized safety-related scales may be inadvisable when comparisons across age and education cohorts are required. Accounting for measurement invariance influences the average location of groups on the latent continuum, and in some cases substantive mean difference results.
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