Table 6.
Outcome | M-then-M | M-then-B | Effect Size |
---|---|---|---|
Classroom rule violations per hour | 14.5 [9.5, 22.1] | 17.1 [10.9, 26.9] | IRR = 1.18 |
Out-of-class disciplinary events per school year† | 2.2 [0.8, 6.6] | 8.2 [3.5, 19.6] | IRR = 3.66 |
Teacher DBD—ADHD | 1.21 (.63) | 1.43 (.71) | d = −0.34 |
Teacher DBD—ODD† | 0.70 (.52) | 1.15 (.91) | d = −0.61 |
Teacher SSRS Social Skills Total Score | 32.2 (6.2) | 28.8 (11.0) | d = −0.39 |
Parent DBD—ADHD | 1.38 (.60) | 1.62 (.63) | d = −0.38 |
Parent DBD—ODD† | 1.02 (.65) | 1.33 (.73) | d = −0.46 |
Parent SSRS Social Skill Total Score | 44.5 (11.2) | 44.0 (9.6) | d = −0.05 |
Note. M-then-M=began with medication treatment and then received higher dose medication treatment, M-then-B=began with medication treatment and then added behavioral treatment, IRR=incidence rate ratio, DBD=Disruptive Behavior Disorders Rating Scale (scores are average scale scores, range 0–3), ADHD=attention deficit hyperactivity disorder, ODD=Oppositional defiant disorder, SSRS=Social Skills Rating Scale. Values are means with standard deviations in parentheses (for continuous outcomes) or asymmetric 95% confidence intervals about the mean (for count outcomes). The IRR is the ratio of the event (e.g., rule violation) incidence rate in one group (here, M-then-B) to the incidence rate in another group (here, M-then-M). The other effect sizes are Cohen’s D with pooled standard deviation (equations 2.5.1 and 2.5.2, pp. 66–67, Cohen, 1988), and are listed such that a positive d reflects an advantage of M-then-B.
p<0.10.