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Reliability and validity of the Korean version of the Scale for the Assessment of Thought, Language, and Communication

Title
Reliability and validity of the Korean version of the Scale for the Assessment of Thought, Language, and Communication
Author
최준호
Keywords
FORMAL THOUGHT; RATING-SCALE; DISORDER; SCHIZOPHRENIA; TRANSLATION
Issue Date
2015-06
Publisher
W B SAUNDERS CO-ELSEVIER INC
Citation
COMPREHENSIVE PSYCHIATRY, v. 61, Page. 122-130
Abstract
Background: Our study aimed to assess the inter-rater and test-retest reliability, as well as concurrent and convergent validity, of the Korean version of the Scale for the Assessment of Thought, Language, and Communication (TLC scale). Methods The factor solutions and psychometric properties of the Korean version of the TLC scale were evaluated among 167 schizophrenia inpatients (study subjects) at two sites in South Korea. Using Pearson's correlation, the concurrent and convergent validities of each of the factor solutions were represented by the correlations with the scores on the Clinical Language Disorder Rating Scale, Brief Psychiatric Rating Scale, Young Mania Rating Scale, and Calgary Depression Scale. Using receiver operating characteristics curves, the optimal cut-off score for the Korean version of the TLC scale to distinguish between study subjects with and without disorganized speech, was identified. Results: The results showed that the Korean version of the TLC scale has a three-factor solution: fluent disorganization, speech emptiness, and speech peculiarity. In addition, the intenater reliability of the Korean version of the TLC scale was moderately good (intraclass correlation coefficient = 0.51) and its test-retest reliability was very good (Pearson's correlation coefficient = 0.94). For detecting the current presence of disorganized speech, the optimal cut-off total score on the TLC scale was proposed to be 8 points (sensitivity = 88.1%; specificity = 82.9%). Limitations: Psychometric tools covering cognitive functions were not used in our study. Conclusions: The Korean version of the TLC scale is a promising psychometric method for examining formal thought disorder (FTD) and disorganized speech in schizophrenia patients. (C) 2015 Elsevier Inc. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S0010440X1500053Xhttp://hdl.handle.net/20.500.11754/25101
ISSN
0010-440X; 1532-8384
DOI
10.1016/j.comppsych.2015.04.002
Appears in Collections:
COLLEGE OF MEDICINE[S](의과대학) > MEDICINE(의학과) > Articles
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