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Table 3 Item-Scale correlations for multitrait-scaling analysis of PedsQLGeneric Core Scales – self-report for healthy & asthma groups (corrected for overlap)

From: Psychometric properties of the Sinhala version of the PedsQL™ 4.0 Generic Core Scales in early adolescents in Sri Lanka

Item NO.

PF

EF

SF

SchF

PF

    

QOL1

.42

.21

.30$

.26

QOL2

.44

.18

.33$

.28

QOL3

.53

.14

.26

.29

QOL4

.39

.13

.31$

.22

QOL5

.33

.13

.21$

.07

QOL6

.48

.21

.26

.21

QOL7

.45

.25

.19

.21

QOL8

.43

.32$

.23

.19

EF

    

QOL9

.16

.37

.17

.25$

QOL10

.25

.51

.25

.19

QOL11

.16

.37

.25$

.16

QOL12

.25$

.27

.39***$

.29***$

QOL13

.22***$

.20

.34***$

.32***$

SF

    

QOL14

.33***$

.32***$

.27

.29***$

QOL15

.31$

.28

.45

.23

QOL16

.25

.27

.46

.30

QOL17

.23

.31

.47

.47$

QOL18

.22

.22

.39

.37$

SchF

    

QOL19

.27

.33

.36

.52

QOL20

.26

.41

.39

.55

QOL21

.24

.32

.38

.53

QOL22

.30

.14

.33

.56

QOL23

.30

.19

.36

.57

  1. N=257.
  2. Item- scale correlations with item- convergent validity are shown in bold typing.
  3. Failed tests with item convergent validity are shown as underlined.
  4. *** - failed tests with item discriminant validity, where an item correlated higher with a scale other than its own.
  5. N$- Scaling errors, where an item correlated with a scale other than its own, with a standard error of correlation more than 1.96 (r>1.96 SE).