Reliability and validity of the Chinese version of Perceived Stress Scale

Objective To assess the reliability and validity of the Chinese version of Perceived Stress Scale( PSS-10). Methods A total of 272 participants, including patients with depression and obsession and healthy volunteers, were selected and tested by the Chinese version of PSS-10, Beck Depression Inventory-II( BD I-II),and Beck Anxiety Inventory( BAI). Thirty patients were randomly selected and retested by PSS-10 after 2weeks. Results The overall Cronbach’s alpha of the Chinese version of PSS-10 was 0. 91 and the test-retest reliability coefficient was 0. 69( P < 0. 05). T he exploratory factor analysis( EFA) yielded two factors, i. e. the negative feelings( 6 items) and positive feelings( 4item s). The confirm atory factor analysis( C FA) indicated that the fitting of the two factor m odel was perfect( χ2= 44. 52,P < 0. 107). The total score of PSS-10 significantly and positively correlated with scores of both BD I-II and BAI( P < 0. 01). The differences of scores of PSS-10 of three groups were significant( F = 107. 6,P < 0. 01). Conclusion The reliability and validity of the Chinese version of PSS-10 are good and can be used as a self rating tool to assess the level of perceived stress.