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Reliability and validity of the Korean version of the Scale for the Assessment of Thought, Language, and Communication.
Compr Psychiatry 2015; 61:122-30CP

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 interrater 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.

Authors+Show Affiliations

Department of Psychiatry, Yong-In Mental Hospital, Yongin, Republic of Korea; Institute of Mental Health, Hanyang University, Seoul, Republic of Korea.Department of Psychiatry, Hanyang University Guri Hospital, Guri, Republic of Korea.Department of Psychiatry, Kangwon University School of Medicine, Chuncheon, Republic of Korea.Department of Psychiatry, St. Andrew's Neuropsychiatric Hospital, Icheon, Republic of Korea.Department of Psychiatry, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea.Institute of Mental Health, Hanyang University, Seoul, Republic of Korea; Department of Psychiatry, Hanyang University Guri Hospital, Guri, Republic of Korea. Electronic address: jchoi@hanyang.ac.kr.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Validation Studies

Language

eng

PubMed ID

25987197

Citation

Park, Seon-Cheol, et al. "Reliability and Validity of the Korean Version of the Scale for the Assessment of Thought, Language, and Communication." Comprehensive Psychiatry, vol. 61, 2015, pp. 122-30.
Park SC, Jang EY, Lee KU, et al. Reliability and validity of the Korean version of the Scale for the Assessment of Thought, Language, and Communication. Compr Psychiatry. 2015;61:122-30.
Park, S. C., Jang, E. Y., Lee, K. U., Lee, K., Lee, H. Y., & Choi, J. (2015). Reliability and validity of the Korean version of the Scale for the Assessment of Thought, Language, and Communication. Comprehensive Psychiatry, 61, pp. 122-30. doi:10.1016/j.comppsych.2015.04.002.
Park SC, et al. Reliability and Validity of the Korean Version of the Scale for the Assessment of Thought, Language, and Communication. Compr Psychiatry. 2015;61:122-30. PubMed PMID: 25987197.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Reliability and validity of the Korean version of the Scale for the Assessment of Thought, Language, and Communication. AU - Park,Seon-Cheol, AU - Jang,Eun Young, AU - Lee,Kang Uk, AU - Lee,Kounseok, AU - Lee,Hwa-Young, AU - Choi,Joonho, Y1 - 2015/04/15/ PY - 2015/02/01/received PY - 2015/03/30/revised PY - 2015/04/08/accepted PY - 2015/5/20/entrez PY - 2015/5/20/pubmed PY - 2016/2/26/medline SP - 122 EP - 30 JF - Comprehensive psychiatry JO - Compr Psychiatry VL - 61 N2 - 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 interrater 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. SN - 1532-8384 UR - https://www.unboundmedicine.com/medline/citation/25987197/Reliability_and_validity_of_the_Korean_version_of_the_Scale_for_the_Assessment_of_Thought_Language_and_Communication_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0010-440X(15)00053-X DB - PRIME DP - Unbound Medicine ER -