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  Indian J Med Microbiol
 

Figure 1: Test performance of geriatric depression scale – short form as per 2-parameter logistic model item response theory model. (a) Test Information Curve (b) Test Characteristic Curve

Figure 1: Test performance of geriatric depression scale – short form as per 2-parameter logistic model item response theory model. (a) Test Information Curve (b) Test Characteristic Curve