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. Author manuscript; available in PMC: 2016 Apr 1.
Published in final edited form as: J Consult Clin Psychol. 2014 Dec 15;83(2):280–292. doi: 10.1037/a0038505

Table 2.

Daily RDPB means, standard deviations, and effect sizes.

Control ADHD-
only
ADHD-CP Control
vs.
ADHD-
only
Control
vs.
ADHD-
CP
ADHD-
only vs.
ADHD-
CP

Treatment
Condition
Mean SD Mean SD Mean SD Cohen’s
d
Cohen’s
d
Cohen’s
d
NBM Placebo 1.10 3.12 1.55 3.63 3.77 9.46 −0.13 −0.38 −0.31
LowRx 1.07 1.72 2.93 7.92 −0.32
MedRx 0.49 0.91 2.91 10.62 −0.32
HighRx 0.55 2.05 1.61 4.08 −0.33
LBM Placebo 0.54 2.60 0.41 0.89 1.00 2.52 0.07 −0.18 −0.31
LowRx 0.45 0.91 0.79 2.41 −0.19
MedRx 0.42 0.96 0.61 2.69 −0.09
HighRx 0.12 0.43 0.36 1.33 −0.24
HBM Placebo 0.18 1.25 0.68 1.55 0.53 1.52 −0.36 −0.25 0.10
LowRx 0.11 0.38 0.50 1.87 −0.29
MedRx 0.21 0.82 0.27 1.09 −0.06
HighRx 0.17 0.53 0.20 0.84 −0.04

Note. Effect sizes for Controls comparisons are Cohen’s d computed as: (Control M—ADHD M)/Pooled SD, within each behavioral condition. NBM = no behavior modification, LBM = low-intensity behavior modification, HBM = high-intensity behavior modification, LowRx = 0.15 mg/kg MPH, MedRx = 0.30 mg/kg MPH, HighRx = 0.60 mg/kg MPH.