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Fig. 2 | BMC Geriatrics

Fig. 2

From: Developing a shortened version of the dementia knowledge assessment scale (DKAS-TC) with a sample in Taiwan: an item response theory approach

Fig. 2

Test information and test error of original DKAS and DKAS-s. Note: Latent trait (Theta) is shown on the horizontal axis (higher values mean higher dementia knowledge); the amount of information and the estimate error yielded by the test at each trait level is shown on the vertical axis. o_info_test: test information of original DKAS, s_info_test: test information of short form DKAS-s, o_test_error: estimate error for latent trait level of original DKAS, s_test_error: estimate error for latent trait level of short form DKAS-s

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BMC Geriatrics

ISSN: 1471-2318

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