Table 3.
Indicator Measure Correlations
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. Elision | -- | ||||||||||||||||||||||
| 2. Blending Words | .41** | -- | |||||||||||||||||||||
| 3. RAN Letters | -.30** | -.08 | -- | ||||||||||||||||||||
| 4. RAN Digits | -.30** | -.11 | .73** | -- | |||||||||||||||||||
| 5. Vocabulary | .31** | .27** | -.29** | -.26** | -- | ||||||||||||||||||
| 6. VAS Letters | .29** | .08 | -.29** | -.34** | .18* | -- | |||||||||||||||||
| 7. VAS Numbers | .20* | <.01 | -.22* | -.27** | .07 | .66** | -- | ||||||||||||||||
| 8. Search Letters | .21* | .11 | -.28** | -.27** | .14* | .18* | .16* | -- | |||||||||||||||
| 9. Search Numbers | .19* | .20* | -.24** | -.25** | .19* | .12 | .11 | .71** | -- | ||||||||||||||
| 10. CPT Block 1 | .10 | .22* | <.01 | .01 | .08 | .21* | .18* | .10 | .13 | -- | |||||||||||||
| 11. CPT Block 2 | .13 | .14* | -.02 | -.02 | .14* | .23* | .29** | .18* | .15* | .73** | -- | ||||||||||||
| 12. CPT Block 3 | .10 | .12 | -.02 | -.03 | .14* | .27** | .26** | .16* | .17* | .74** | .82** | -- | |||||||||||
| 13. Inattention | -.20* | .02 | .14* | .16* | -.11 | -.21* | -.22* | -.18* | -.10 | -.11 | -.10 | -.15* | -- | ||||||||||
| 14. Hyperactivity | -.14* | .05 | .06 | .01 | -.08 | -.16* | -.14* | -.09 | -.01 | -.06 | -.05 | -.10 | .85** | -- | |||||||||
| 15. Digits Forward | .31** | .30** | -.21* | -.23** | .23** | .14* | .03 | .17* | .17* | .08 | .03 | -.02 | .02 | <.01 | -- | ||||||||
| 16. Digits Backward | .36** | .16* | -.29** | -.28** | .08 | .26** | .23** | .13 | .18* | .18* | .20* | .13 | -.17* | -.16* | .28** | -- | |||||||
| 17. Digits Sequence | .35** | .20* | -.29** | -.35** | .25** | .22* | .18* | .08 | .08 | .07 | .10 | .05 | -.12 | -.10 | .34** | .48** | -- | ||||||
| 18. Picture Span | .26** | .20* | -.25** | -.24** | .17* | .12 | .15* | .04 | .01 | .29** | .24** | .29** | -.20* | -.17* | .19* | .30** | .33** | -- | |||||
| 19. Coding | -.05 | .02 | -.19* | -.28** | -.04 | .14* | .21* | .43** | .33** | .18* | .21* | .18* | -.23** | -.21* | .04 | .17* | .13 | .12 | -- | ||||
| 20. Symbol Search | .02 | -.03 | -.13 | -.22* | .14* | .08 | .06 | .41** | .34** | -.01 | .12 | .10 | -.13 | -.10 | .03 | .05 | .08 | -.01 | .48** | -- | |||
| 21. Letter Word Recognition | .56** | .19* | -.42** | -.44** | .35** | .29** | .26** | .24** | .21* | .02 | .14* | .16* | -.27** | -.22* | .23** | .22* | .26** | .28** | <.01 | .16* | -- | ||
| 22. Word Reading Fluency | .51** | .18* | -.42** | -.49** | .40** | .41** | .31** | .31** | .31** | .03 | .15* | .15* | -.30** | -.21* | .24** | .24** | .30** | .23** | .10 | .20* | .75** | -- | |
| 23. Math Computation | .31** | .08 | -.23** | -.23** | .21* | .19* | .26** | .08 | .13 | .16* | .16* | .10 | -.43** | -.36** | .23** | .41** | .43** | .29** | .26** | .17* | .36** | .37** | -- |
| 24. Math Fluency | .26** | .08 | -.23** | -.30** | .17* | .19* | .24** | .21* | .26** | .01 | .02 | .03 | -.19* | -.13* | .17* | .27** | .34** | .12 | .25** | .23** | .29** | .34** | .46** |
Note.
*
p < .05
**
p < .001
RAN = Rapid Automatized Naming subtests; VAS = Visual Attention Span; CPT = Continuous Performance Task. RAN, Elision, and Blending Words are from the CTOPP-2; Vocabulary from WJ-III; Digits measures, Picture Span, Coding, and Symbol Search are from the WISC-V; reading and math measures are from the KTEA-3.