Abeysena, H.T.C.S.; Jayawardana, P.L.; Peiris, M.U.P.K.; Rodrigo, A.
(Ibn Sina Academy of Medieval Medicine & Sciences, 2016)
OBJECTIVE: To determine the criterion validity of the Sinhala version of the General Health Questionnaire-12 (GHQ-12) and GHQ-30 employing different sampling designs and scoring methods. METHODS: This was a descriptive ...