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Table 4 Item-scale correlation matrix for the eight SF-12 scales and summary measures*

From: The Iranian version of 12-item Short Form Health Survey (SF-12): factor structure, internal consistency and construct validity

 

PF

RP

BP

GH

SF

RE

VT

MH

PCS

MCS

PF

          

PF1

0.84

0.42

0.25

0.37

0.31

0.25

0.26

0.23

0.62

0.17

PF2

0.85

0.44

0.24

0.36

0.32

0.26

0.29

0.24

0.61

0.20

RP

          

RP1

0.42

0.89

0.27

0.34

0.36

0.43

0.25

0.24

0.62

0.30

RP2

0.44

0.87

0.29

0.34

0.38

0.40

0.24

0.25

0.65

0.29

BP

          

BP1

0.28

0.32

1.00

0.27

0.34

0.25

0.22

0.22

0.58

0.23

GH

          

GH1

0.42

0.38

0.27

1.00

0.36

0.30

0.35

0.31

0.61

0.35

SF

          

SF1

0.36

0.41

0.34

0.36

1.00

0.43

0.35

0.45

0.36

0.66

RE

          

RE1

0.25

0.41

0.21

0.27

0.37

0.91

0.25

0.33

0.12

0.70

RE2

0.29

0.42

0.24

0.28

0.40

0.89

0.26

0.34

0.17

0.67

VT

          

VT1

0.32

0.28

0.22

0.35

0.35

0.28

1.00

0.48

0.35

0.53

MH

          

MH1

0.24

0.23

0.18

0.27

0.34

0.27

0.49

0.82

0.15

0.61

MH2

0.19

0.21

0.16

0.25

0.40

0.34

0.28

0.78

0.05

0.68

  1. * Figures are Spearman's correlation coefficient (rho). All correlations were significant at the 0.01 levels. Correlation values of 0.40 or above were considered satisfactory (correlations ≥ 0.81-1.0 as excellent, 0.61-0.80 very good, 0.41-0.60 good, 0.21-0.40 fair, and 0-0.20 poor) [30].
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BMC Public Health

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