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. Author manuscript; available in PMC: 2019 Mar 24.
Published in final edited form as: Psychiatry Res. 2016 Jun 5;242:251–259. doi: 10.1016/j.psychres.2016.05.054

Table 2.

Inter-correlations and Descriptive Statistics– Parent Variables

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
1. SCT Total --
2. Slow .86** --
3. Sleepy .79** .50** --
4. Daydreamy .72** .44** .40** --
5. Word Reading −.08 −.17** −.07 .10 --
6. Numerical Operations −.06 −.14* −.03 .06 .52** --
7. Spelling −.08 −.17** −.06 .09 .85** .54** --
8. Overall School Impair .31** .44** .19** −.03 −.44** −.35** −.43** --
9. Reading Impair .13** .26** .03 −.04 −.63** −.33** −.53** .60** --
10. Writing Impair .28** .39** .14* .06 −.39** −.24** −.36** .58** .56** --
11. Mathematics Impair .35** .43** .20** .14* −.28** −.42** −.25** .69** .43** .45** --
12. IQ −.15** −.27** −.10 .09 .51** .52** .45** −.41** −.41** −.24** −.43** --
13. Inattention Symptoms .56** .63** .28** .38** .02 −.08 .01 .31** .15* .25** .28** −.011 --
14. Hyp/Imp Symptoms .03 .16* −.11 −.02 −.05 .07 −.02 .07 .02 .12 −.07 .04 .38** --
15. Medication Status .00 −.004 −.03 .05 −.01 −.12 −.09 −.09 −.07 .03 .02 −.03 .03 .04 --
16. ODD/CD Dx .10 .16* .09 −.04 .01 −.02 .02 .08 .05 −.04 .06 −.06 .24** .32** .09 --
17. Anx/Depressive Dx .27** .28** .24** .09 .06 .04 .06 .08 −.03 .01 .06 −.04 .20** .08 .15* .11
Mean
SD
1.1
0.5
1.5
0.6
0.4
0.6
1.2
0.9
95.8
15.3
94.7 14.6 95.3 14.3 3.6
1.1
3.4
1.3
3.8
1.0
3.4
1.2
100.4
14.5
2.2
0.6
1.6
0.8
n/a n/a
n 243 243 243 243 252 252 252 249 249 249 249 252 250 250 252 252

Note. Impair=Impairment; Hyp/Imp=hyperactivity/impulsivity; ODD=oppositional defiant disorder; CD=conduct disorder; Anx=anxiety; DX=diagnosis.

*

p<.05.

**

p<.01. Medication status was coded as 0 (not on medication) or 1 (on medication).