Table 3. Analyses of Intervention Effects Using SAS PROC MIXED.

Variable	Denominator df	F	p<	ES
Child social cognition and reading
Emotion recognition	353	25.62	.0001	.54
Emotion coping	361	5.64	.02	.25
Social problem solving	359	9.61	.002	.33
Hostile attributions	359	0.22	.64	.05
Aggressive retaliation	359	4.57	.04	.23
Woodcock Letter–Word IDa	115	0.61	.44	.15
Spache Word Attackb	244	18.79	.0001	.56
Language arts grades (A = 13, F =1)c	360	7.59	.007	.29
Child peer relations and social competence
Time in positive peer interactionc	356	6.30	.02	.27
Peer social preferencec	329	6.38	.02	.28
Peer-nominated prosocialc	329	3.72	.06	.21
Teacher-rated social competenceb	217	0.56	.46	.10
Parent-rated social competence	349	0.16	.69	.04
Parenting behavior
Harsh discipline
PQ	366	0.09	.76	.03
Vignettes: Physical punishment	367	4.97	.03	.23
CII/BCSd	246	0.65	.43	.10
Warmth/positive involvement
PQ	366	0.50	.48	.07
CII/BCS/IRSd	247	8.40	.005	.37
Appropriate/consistent discipline
PQ	366	0.34	.56	.06
CIId	246	7.12	.009	.34
BCSd	246	1.18	.28	.14
Learning and school involvement
Encourage learning (PQ/PTI–Parent)	366	0.22	.64	.05
PTI–Teacher	346	8.71	.004	.32
Parent rating of behavior changeb	248	30.16	.0001	.70
Parent social cognition
Attitudes toward the child
PQ/Developmental History	367	0.06	.81	.03
Interviewer Developmental History	367	3.37	.07	.19
Educational values (PTI–Teacher)	344	2.51	.11	.17
Parent change: Satisfaction/difficultyb	247	6.69	.02	.33
Child aggressive–disruptive behavior
CBCL Externalizing (T score)	362	0.25	.62	.04
Parent Daily Report problem score	359	2.53	.11	.17
Parent Ratings of Child Behavior Changeb	245	15.55	.0001	.50
TRF Externalizing (T score)	338	0.05	.83	.02
Teacher TOCA–R Authority Acceptance Scalec	360	0.04	.85	.02
Teacher Ratings of Child Behavior Changeb	244	17.38	.0001	.53
Peer-nominated aggressionc	329	0.80	.38	.10
Observed acts of aggressionc	356	1.05	.31	.11
Observer TOCA–R Authority Acceptance Scalec	356	8.76	.004	.31
Special-education services (min/week)c	358	6.19	.02	.26
Parent–child interaction
Warmth/affection/gratification (CII/IRS)d	246	3.16	.08	.23
Noncompliance/aggression (CII/BCS)d	246	3.02	.09	.22

Note. ES = effect size; ID = Identification; PQ = Parent Questionnaire; CII = Coder Impressions Inventory; BCS = Behavioral Coding System; IRS = Interaction Rating Scales; PTI = Parent–Teacher Involvement Questionnaire; CBCL = Child Behavior Checklist; TRF = Teacher's Report Form; TOCA–R = Teacher Observation of Classroom Adaptation—Revised.

^aAdministered to Cohort 1 only.

^bAdministered to Cohorts 2 and 3 only. No preintervention score available.

^cNo preintervention score available.

^dAnalyses conducted with Cohorts 2 and 3. No preintervention score available for Cohort 1.