Dr. WONG Chi-kin, KenchiKenchiDr. WONG Chi-kinO'Driscoll, Michael P.Michael P.O'Driscoll2018-01-032018-01-032016Psychology, Health & Medicine, Dec 2016, vol. 21(8), pp. 975-980.1354-85061465-3966http://hdl.handle.net/20.500.11861/4896The General Health Questionnaire-12 (GHQ-12) is a widely used instrument for measuring psychological strain, but the factor structure of the GHQ-12 is inconclusive. The present study examined one-factor, two- and three-factor models of the GHQ-12 using structural equations modelling in a longitudinal data-set of Hong Kong employees. The findings supported a two-factor model consisting of a ‘Social Dysfunction’ factor measured by three items, and an ‘Anxiety/Depression’ factor measured by four items. Implications and limitations are discussed.enGHQ-12PsychometricHong KongEmployeesValidityPeer Reviewed Journal Article10.1080/13548506.2016.1140901