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. Author manuscript; available in PMC: 2017 Nov 1.
Published in final edited form as: Biol Psychiatry. 2017 Jan 13;82(9):660–668. doi: 10.1016/j.biopsych.2017.01.003

TABLE 2.

Bivariate correlations between behavioral and cognitive measures of ADHD symptomatology.

Parent SDQ DAWBA Reaction Time Variability Composite ADHD Latent Variable
Youth SDQ Pearson Correlation *.430 *.359 *.139 *.736 *.518
Sig. (2-tailed) p <.001 p <.001 p <.001 p <.001 p <.001
N 1538 1538 767 1538 1538
Parent SDQ Pearson Correlation *.661 *.139 *.861 *.973
Sig. (2-tailed) p <.001 p <.001 p <.001 p <.001
N 1538 767 1538 1538
DAWBA Pearson Correlation *.108 *.832 *.802
Sig. (2-tailed) p <.005 p <.001 p <.001
N 767 1538 1538
Reaction Time Variability Pearson Correlation *.159 *.149
Sig. (2-tailed) p <.001 p <.001
N 767 767
Composite ADHD Pearson Correlation *.944
Sig. (2-tailed) p <.001
N 1538