Reliability in the Rasch model
نویسندگان
چکیده
This paper deals with the reliability of composite measurement consisting of true-false items obeying the Rasch model. A definition of reliability in the Rasch model is proposed and the connection to the classical definition of reliability is shown. As a modification of the classical estimator Cronbach’s alpha, a new estimator logistic alpha is proposed. Finally, the properties of the new estimator are studied via simulations in the Rasch model.
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ورودعنوان ژورنال:
- Kybernetika
دوره 43 شماره
صفحات -
تاریخ انتشار 2007