Validity and reliability study of the Thai version of WHO Schedules for Clinical Assessment in Neuropsychiatry version 2.1.
OBJECTIVE
To determine the validity and reliability of the Thai version of WHO Schedule for Clinical Assessment in Neuropsychiatry (SCAN) version 2.1.


METHODS
The SCAN interview book version 2.1 was translated from English into Thai. The content validity of the translation was verified by examining the back-translation. Whenever inconsistencies were encountered, the Thai version was adapted to convey the meaning of the original. The revised Thai version was then field-tested in 4 regions of Thailand for comprehensibility of the relatively technical language. Re-edition of the Thai version was made in accordance with suggestions from the field trial. The complete SCAN Thai version was put into the computerized I-Shell program for inter and intra-rater reliability study.


RESULTS
Based on the response from Thai subjects and consultations with competent and well SCAN-trained psychiatrists, content validity was established. The inter- and intra-rater agreement of somatoform and dissociative symptoms module were 0.77, 0.85; anxiety: 0.79, 0.84; mood: 0.80, 0.86; eating disorders: 0.73, 0.76; use of alcohol: 0.66, 0.82; stress and adjustment disorders: 0.90, 0.94; psychosis: 0.68, 0.76; cognitive impairment: 0 72, 0.78 and observed behavior, affect and speech module were 0.45 and, 0.51 respectively.


CONCLUSIONS
The SCAN version 2.1 Thai version proved to be a reliable tool for assessing psychiatric illness among Thais.
Paholpak
Suchat
S
Department of Psychiatry, Faculty ofMedicine, Khon Kaen University, Khon Kaen, Thailand. suchat_p@kku.ac.th
Krisanaprakornkit
Thawatchai
T
Piyavhatkul
Nawanant
N
Arunpongpaisal
Suwanna
S
Rangseekajee
Poonsri
P
Pajanasoontorn
Niramol
N
Khiewyoo
Jiraporn
J
Virasiri
Surapol
S
Tassaniyom
Kanida
K
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000175:diagnosis*; D009483:Neuropsychological Tests; D015588:Observer Variation; D011237:Predictive Value of Tests; D011569:Psychiatric Status Rating Scales; D015203:Reproducibility of Results; D013785:Thailand