Brief Assessment of Cognition in Schizophrenia: Validation of the Japanese version.
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| Title: | Brief Assessment of Cognition in Schizophrenia: Validation of the Japanese version. |
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| Authors: | KANEDA, YASUHIRO (AUTHOR), SUMIYOSHI, TOMIKI (AUTHOR), KEEFE, RICHARD (AUTHOR), ISHIMOTO, YASUHITO (AUTHOR), NUMATA, SHUSUKE (AUTHOR), OHMORI, TETSURO (AUTHOR) |
| Source: | Psychiatry & Clinical Neurosciences. Dec2007, Vol. 61 Issue 6, p602-609. 8p. 6 Charts. |
| Subjects: | Schizophrenia, Health outcome assessment, Japanese language, Cognitive testing, Informed consent (Medical law), Continuous performance test, Short-term memory |
| 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. [ABSTRACT FROM AUTHOR] |
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| Database: | Psychology and Behavioral Sciences Collection |
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| 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. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 13231316 |
| DOI: | 10.1111/j.1440-1819.2007.01725.x |
