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Table 3 Residuals and correlation coefficients for the SDM-Q-9

From: Psychometric properties of the Danish SDM-Q-9 questionnaire for shared decision-making in patients with pelvic floor disorders and low back pain: item response theory modelling

 

item1

item2

item3

item4

item5

item6

item7

item8

item9

item1

NA

0.26

-0.24

-0.23

-0.21

-0.24

-0.32

-0.28

0.18

item2

 

NA

-0.27

-0.30

-0.23

-0.25

-0.27

-0.27

-0.20

item3

  

NA

-0.27

-0.27

-0.19

-0.22

-0.34

-0.28

item4

   

NA

-0.26

-0.33

0.25

-0.52

-0.28

item5

    

NA

-0.33

-0.30

-0.32

0.22

item6

     

NA

0.23

0.24

-0.25

item7

      

NA

-0.31

-0.30

item8

       

NA

-0.31

item9

        

NA