%0 Journal Article
%T Preliminary Study of the Thai Version of the Scale for the Assessment of Negative Symptoms (SANS-Thai) | Charernboon | Global Journal of Health Science | CCSE
%A Thammanard Charernboon
%J Home | Global Journal of Health Science | CCSE
%D 2019
%R 10.5539/gjhs.v11n6p19
%X OBJECTIVES: The study aimed to evaluate content validity, convergent validity, internal consistency and test-retest reliability of the Thai version of the Scale for the Assessment of Negative Symptoms (SANS-Thai).

METHODS: The content validity of the SANS-Thai was assessed using four experts. The average-content validity index and item level content validity index were analyzed. The SANS-Thai and the Thai versions of the Addenbrooke¡¯s Cognitive Examination (ACE) were administered to 40 people with schizophrenia to examine convergent validity and internal consistency. Twenty participants took the second SANS-Thai assessment within four weeks to evaluate test-retest reliability.

RESULTS: The results demonstrated that the SANS-Thai has excellent content validity with the average-content validity index of 0.94. The majority of the item level content validity index range from 0.75 to 1. The global and total SANS-Thai score moderately correlated with the ACE with the correlation coefficient of -0.48 (p = 0.002) and -0.49 (p=0.001), respectively. Internal consistency by the Cronbach alpha coefficient was 0.95. Test-retest reliabilities by intraclass correlation were 0.91 (p<0.001) for global SANS-Thai and 0.9 (p<0.001) for total SANS-Thai. The Bland-Altman plot demonstrated that only 5% of the participants fell outside the limits of agreement for both global SANS and total SANS scores.

CONCLUSION: The SANS-Thai appears to be a valid and reliable measure of negative symptoms in schizophrenia and could be useful for patient care and research studies
%U http://www.ccsenet.org/journal/index.php/gjhs/article/view/0/39205