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KMID : 0869220040080020107
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Journal of Korean Geriatric Psychiatry
2004 Volume.8 No. 2 p.107 ~ p.112
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Item Analysis of the Mini-Memory Test in Elderly Psychiatric Patients
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박종한/Park JH
이종훈/문병상/Lee JH/Mun BS
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Abstract
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Objective: Analyses of the 24 items of the Mini-Memory Test (MiMeT) using the item response theory.
Methods: Item difficulty and item discrimination of all items were evaluated with the 2-parametric logistic model in elderly psychiatric patients with memory impairment (n=332, 48.4%) and without (n=354, 51.6%). The BILOG 3 for Windows was employed for the analysis.
Results: The mean item difficulty (+/-SD) was -0.878 (+/-1.176), with range of -3.299~0.902. The mean item discrimination (+/-SD) was -1.051(+/-0.392), ranging from 0.346 to 1.848. Discriminations of 19 items were above appropriate level and the delayed recall of short story items of the long-term memory had the highest discrimination.
Conclusion: All the MiMeT items were thought as having no problems as memory screening test in terms of difficulty and discrimination at the level of p<0.01.
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