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Table 1 Means, standard deviations, alpha coefficients and correlation matrix for all variables

From: Impact of psychological inflexibility on depressive symptoms and sleep difficulty in a Japanese sample

 

Variable

2

3

4

Mean

SD

α

1

Psychological Inflexibility

.599***

.611***

.394***

17.75

8.95

.887

2

Depressive symptoms (9-item)

 

.983***

.556***

6.59

4.97

.819

3

Depressive symptoms (8-item)

  

.484***

5.62

4.36

.806

4

Insomnia symptoms

   

6.90

3.92

.733

  1. N = 663
  2.  *** p < .001
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