S vonAmmon Cavanaugh

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The internal consistency of the Beck Depression Inventory (BDI) is assessed in 335 randomly selected medical inpatients, and in another sample of 101 depressed psychiatric inpatients with 104 interviewed normals. The data for the two samples were analyzed separately using a latent trait model. The analysis confirms that the BDI measures a single underlying(More)
The Beck Depression Inventory (BDI), General Health Questionnaire-30 (GHQ-30) and the Mini Mental Status Examination (MMSE) were administered to 335 randomly selected hospitalized medical patients. Thirty-six percent showed depressive symptomatology as measured by the BDI, 61% showed emotional dysfunction on the GHQ-30, and 28% evidenced cognitive(More)
This paper describes the general statistical theory of item-response modeling as developed in the fields of statistics and education. Generalization of these procedures for application in the analysis of psychiatric rating scales is the focus of this paper. Questions of unidimensionality vs multidimensionality and choice of distributional transform(More)
The Mini Mental Status Examination, General Health Questionnaire-30, and Beck Depression Inventory were administered to 335 randomly selected hospitalized medical patients. Twenty-eight percent of the population had evidence of cognitive dysfunction on the Mini Mental Status Examination, 61% showed emotional dysfunction on the General Health(More)
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