The Reliability and Validity of the Korean Version of the Structured Interview for Prodromal Syndrome
Psychiatry Investigation
;
: 257-263, 2010.
Article
in English
| WPRIM
| ID: wpr-91067
ABSTRACT
OBJECTIVE:
The Structured Interview for Prodromal Syndrome (SIPS) from Yale University is intended to diagnose prodromal syndrome of psychosis and to measure the severity of prodromal symptoms. Here, a Korean version of SIPS is presented, and its reliability, validity, and factor structures are examined using a representative Korean sample.METHODS:
The Korean version of SIPS was administered to 40 participants over a period of 1 year. The inter-rater reliability and internal consistency of the SIPS were then evaluated. In addition, its factor structure was investigated using principal-axis factor analysis. Concurrent validity was explored using Pearson correlation coefficients with the Positive and Negative Syndrome Scale (PANSS).RESULTS:
Of the 40 subjects, 12.5% developed psychotic disorders during the 1-year follow-up period. Inter-rater reliability was good (intra-class correlations=0.96), and internal consistency was acceptable (Cronbach's alpha=0.83). A three-factor resolution displayed the best simple structure and accounted for 52.6% of all item variance. Factors 1 and 2 showed strong correlations with negative symptoms and cognitive dysfunction, respectively, on the PANSS. Factor 3 was not correlated with any factor on the PANSS.CONCLUSION:
The Korean version of SIPS is a reliable instrument for the assessment of prodromal symptoms in subjects and may be used to evaluate prodromal psychosis.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Psychotic Disorders
/
Schizophrenia
/
Reproducibility of Results
/
Follow-Up Studies
/
Prodromal Symptoms
Type of study:
Observational study
/
Prognostic study
/
Qualitative research
Language:
English
Journal:
Psychiatry Investigation
Year:
2010
Type:
Article
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