Use of SEM Programs to Precisely Measure Scale Reliability
نویسندگان
چکیده
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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