To effectively assess the reliability of a questionnaire using structural equation modeling (SEM), it’s important to follow a few best practices. First, calculating Cronbach's alpha can help determine internal consistency, but it's also crucial to consider additional indices like composite reliability for a more comprehensive evaluation. Furthermore, Cheung et al. (2024) recommend performing test-retest reliability assessments to ensure stability over time. Including a thorough report of these reliability metrics, along with convergent and discriminant validity checks, strengthens the overall quality and trustworthiness of the findings in SEM studies.
Cheung GW, Cooper-Thomas HD, Lau RS, Wang LC. Reporting reliability, convergent and discriminant validity with structural equation modeling: A review and best-practice recommendations. Asia Pacific Journal of Management. 2024 Jun;41(2):745-83.