The Concurrent Validity of the ‘Korean Test for the Differential Diagnosis of Aphasia’

Lee, Kun Jai; Lee, Chan-Jong; Kim, Jung Hwan; Jung, Sung Mi; Hwang, Soojin

ORIGINAL ARTICLE

Commun Sci Disord. 2009;14(1): 58-69.

Kun Jai Lee^` , Chan-Jong Lee^` , Jung Hwan Kim^` , Sung Mi Jung^` , and Soojin Hwang^`

이건재(Kun Jai Lee)| 이찬종(Chan-Jong Lee)| 김정환(Jung Hwan Kim)| 정성미(Sung Mi Jung)| 황수진(Soojin Hwang)

ABSTRACT

Background & Objectives
The purpose of this study was to demonstrate the concurrent validity of the standardized “Korean Test for the Differential Diagnosis of Aphasia (KTDDA).”
Methods
For concurrent validity, 10 aphasic patients were evaluated with the recently developed KTDDA and the Paradise․Korean type-Western Aphasia Battery (P․K-WAB).
Results
The correlation between the severity of the KTDDA and the aphasia quotient (AQ) of the K-WAB was significant (r = .863, p < .01). The correlation between the severity of the KTDDA and the language quotient (LQ) of the K-WAB was also significant (r = .980, p < .01). The repetition subtest (r = .955, p < .01), the naming subtest (r = .942, p < .01), the fluency subtest (r = .807, p < .01), the reading subtest (r = .793, p < .01), the writing subtest (r = .780, p < .01), and the auditory comprehension subtest (r = .705, p < .05) between the KTDDA and the K-WAB also had statistically significant correlations.
Discussion & Conclusion
We determined that the KTDDA is the official standardized tool in the assessment of aphasia, and its clinical usefulness is based on its concurrent validity with the K-WAB.