A study on reliability and validity of the Depression-Happiness Scale in justice's staff of Isfahan city

The purpose of this study was to assess the reliability and validity of the Depression-Happiness Scale (H-PS) in staff of Isfahan justice.Methods and Material: 200 subjects (134 male, 66 female) with a mean age of 33/7(ranged from 21to56) and standard deviation 10/6 were chosen among 900 staff of Isfahan’s court. Their literacy level ranged from diploma to MS. All subjects completed the Depression-Happiness Scale (D-HS), Beck Depression Inventory (BDI) and Oxford Happiness Inventory (OHI) in one session. The study of internal consistency of D-HS showed that all items have high correlation with total scores, the Cronbach alpha was0/93 and test-retest reliability after two months was0/72. D-HS was highly correlated with OHI and BDI. The factor analysis revealed 5 factors with an eigenvalue greater than 1, which could explain 57/1% of the total variance. But because first factor with an eigenvalue10/72 accounted for most (42/91%) of the variance, a one-factor model was specified. Depression-Happiness Scale is a reliable and valid test for measuring happiness in Iranian population.