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Brief assessment of cognition in schizophrenia: validation of the Japanese version.
Psychiatry Clin Neurosci. 2007 Dec; 61(6):602-9.PC

Abstract

This preliminary study was performed to test the reliability and validity of the Brief Assessment of Cognition in Schizophrenia (BACS) as an assessment tool in a Japanese-language version (BACS-J). The subjects for the present study were 30 outpatients with chronic schizophrenia. Each subject gave written informed consent to participate in the research. Cronbach's alpha for the BACS-J was 0.77. The BACS-J composite score was significantly correlated with all primary measures of BACS-J (verbal memory, working memory, motor speed, verbal fluency, attention, and executive function). All BACS-J primary measures and the composite score were significantly correlated between two assessments. The mean score of the Digit Sequencing Task and composite score on the second assessment were significantly larger than those on the first assessment. All BACS-J primary measures except the Symbol Coding Task were significantly correlated with relevant standard neurocognitive tests. Also, the BACS-J composite score was significantly correlated with all standard neurocognitive tests except the Continuous Performance Test. A principal components analysis with varimax rotation resulted in a three-factor solution (executive function and memory; motor speed and general cognitive functions; and working memory). This preliminary study indicates that the BACS-J is a reliable and practical scale to evaluate cognitive function.

Authors+Show Affiliations

Department of Psychiatry, Tokushima University Hospital, Tokushima, Japan. kaneday-tsh@umin.ac.jpNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

18081619

Citation

Kaneda, Yasuhiro, et al. "Brief Assessment of Cognition in Schizophrenia: Validation of the Japanese Version." Psychiatry and Clinical Neurosciences, vol. 61, no. 6, 2007, pp. 602-9.
Kaneda Y, Sumiyoshi T, Keefe R, et al. Brief assessment of cognition in schizophrenia: validation of the Japanese version. Psychiatry Clin Neurosci. 2007;61(6):602-9.
Kaneda, Y., Sumiyoshi, T., Keefe, R., Ishimoto, Y., Numata, S., & Ohmori, T. (2007). Brief assessment of cognition in schizophrenia: validation of the Japanese version. Psychiatry and Clinical Neurosciences, 61(6), 602-9.
Kaneda Y, et al. Brief Assessment of Cognition in Schizophrenia: Validation of the Japanese Version. Psychiatry Clin Neurosci. 2007;61(6):602-9. PubMed PMID: 18081619.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Brief assessment of cognition in schizophrenia: validation of the Japanese version. AU - Kaneda,Yasuhiro, AU - Sumiyoshi,Tomiki, AU - Keefe,Richard, AU - Ishimoto,Yasuhito, AU - Numata,Shusuke, AU - Ohmori,Tetsuro, PY - 2007/12/18/pubmed PY - 2008/2/15/medline PY - 2007/12/18/entrez SP - 602 EP - 9 JF - Psychiatry and clinical neurosciences JO - Psychiatry Clin Neurosci VL - 61 IS - 6 N2 - This preliminary study was performed to test the reliability and validity of the Brief Assessment of Cognition in Schizophrenia (BACS) as an assessment tool in a Japanese-language version (BACS-J). The subjects for the present study were 30 outpatients with chronic schizophrenia. Each subject gave written informed consent to participate in the research. Cronbach's alpha for the BACS-J was 0.77. The BACS-J composite score was significantly correlated with all primary measures of BACS-J (verbal memory, working memory, motor speed, verbal fluency, attention, and executive function). All BACS-J primary measures and the composite score were significantly correlated between two assessments. The mean score of the Digit Sequencing Task and composite score on the second assessment were significantly larger than those on the first assessment. All BACS-J primary measures except the Symbol Coding Task were significantly correlated with relevant standard neurocognitive tests. Also, the BACS-J composite score was significantly correlated with all standard neurocognitive tests except the Continuous Performance Test. A principal components analysis with varimax rotation resulted in a three-factor solution (executive function and memory; motor speed and general cognitive functions; and working memory). This preliminary study indicates that the BACS-J is a reliable and practical scale to evaluate cognitive function. SN - 1323-1316 UR - https://www.unboundmedicine.com/medline/citation/18081619/Brief_assessment_of_cognition_in_schizophrenia:_validation_of_the_Japanese_version_ L2 - https://doi.org/10.1111/j.1440-1819.2007.01725.x DB - PRIME DP - Unbound Medicine ER -