Summary
It is first pointed out that most often used reliability coefficient α and one-factor model based reliability ρ are seriously biased when unique factors are covariated. In the case, the α is no longer a lower bound of the true reliability. Use of Bollen’s formula (Bollen 1980) on reliability is highly recommended. A web-based program termed “STERA” is developed which can make stepwise reliability analysis very easily with the help of factor analysis and structural equation modeling.
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Kano, Y., Azuma, Y. (2003). Use of SEM Programs to Precisely Measure Scale Reliability. In: Yanai, H., Okada, A., Shigemasu, K., Kano, Y., Meulman, J.J. (eds) New Developments in Psychometrics. Springer, Tokyo. https://doi.org/10.1007/978-4-431-66996-8_14
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DOI: https://doi.org/10.1007/978-4-431-66996-8_14
Publisher Name: Springer, Tokyo
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