J Korean Neuropsychiatr Assoc.  2001 Nov;40(6):1090-1105.

Reliability and Validity of the Korean Version of the Positive and Negative Syndrome Scale

Affiliations
  • 1Department of Psychiatry, College of Medicine, Hallym University, Chuncheon, Korea.
  • 2Department of Psychiatry, Eulji University, School of Medicine, Seoul, Korea.
  • 3Seoul Institute of Clinical Psychology, Seoul, Korea.
  • 4Department of Psychiatry, Yonsei University, College of Medicine, Seoul, Korea.
  • 5Department of Psychiatry, Asan Medical Center, Ulsan University College of Medicine, Seoul, Korea.
  • 6Department of Neuropsychiatry, Kyung Hee University Medical College, Seoul, Korea.
  • 7Department of Psychiatry, College of Medicine, Korea University, Seoul, Korea.
  • 8Department of Psychiatry, Kangnam General Hospital Public Corporation, Seoul, Korea.
  • 9Department of Psychiatry, Seoul National University Medical College, Seoul, Korea.
  • 10Department of Psychiatry, College of Medicine, The Catholic University of Korea, Seoul, Korea.
  • 11Department of Psychiatry, Inchon Christian Hospital, Inchon, Korea.

Abstract


OBJECTIVES
We tested the reliability and validity of the Korean version of the PANSS (PANSS-KV).
METHODS
The PANSS ratings were obtained from 101 subjects with DSM-IV diagnoses of schizophrenia or schizophreniform disorder. To study the concurrent validity, the Scale for the Assessment of Positive Symptoms (SAPS) and the Scale for the Assessment of Negative Symptoms (SANS) were also administrated in 38 patients. Using these data, inter-rater reliability, test-retest reliability, internal consistency, criterion validity and concurrent validity were evaluated. Factor structure was analyzed by the principal axis factoring.
RESULTS
The inter-rater reliability of the Korean version of the PANSS was satisfactory in positive (r=0.92) and negative syndrome subscales(r=0.86), but somewhat low in general psychopathology subscale (r=0.78). The test-retest correlations for the 3 PANSS subscales ranged between 0.89 and 0.95, so it showed excellent test-retest reliability. The Cronbach's alpha for the positive, negative and general psychopathology subscales were 0.73, 0.84 and 0.74, respectively and thus the 3 subscales of the PANSS had good internal consistencies. All separate items revealed significant corrected item-total correlations in the positive and negative syndrome subscales, but some items of the general psychopathology subscale showed no or low corrected item-total correlations. The positive and negative syndrome subscales held a high concurrent validity in relation to the SAPS and the SANS. It was confirmed that positive and negative syndromes were independent constructs. The factor analysis by the principal axis factoring produced 5 components: cognitive, excitement, depression, positive and negative.
CONCLUSION
These findings prove that the reliability and validity of the PANSS-KV are comparable to those of the original PANSS. So, the PANSS-KV can be widely and extensively used in researches for schizophrenia.

Keyword

Korean version of the positive and negative syndrome scale (PANSS-KV); Reliability; Validity

MeSH Terms

Axis, Cervical Vertebra
Depression
Diagnosis
Diagnostic and Statistical Manual of Mental Disorders
Humans
Psychopathology
Psychotic Disorders
Reproducibility of Results*
Schizophrenia
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