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Table 2 Means, standard deviation (SD) and correlations of psychological variables

From: Prevalence of depressive symptoms and its correlations with positive psychological variables among Chinese medical students: an exploratory cross-sectional study

Variables Mean SD 1 2 3 4
1. Depression 20.36 9.31 1    
2. Resilience 69.33 15.66 −0.468** 1   
3. Hope 42.43 10.41 −0.451** 0.721** 1  
4. Optimism 22.35 3.42 −0.401** 0.392** 0.370** 1
  1. Depression: the Center for Epidemiologic Studies Depression Scale (CES-D); Resilience: Resilience Scale-14 (RS-14); Hope: Adult Dispositional Hope Scale (ADHS); Optimism: Life Orientation Test-Revised (LOT-R). **p < 0.01 (two-tailed)