Table 3.

Effect sizes for rating scales completed before and after school-based AIMS.

	Pre M (SD)	Post M (SD)	Cohen’s d
Parent Ratings
Homework Problems Checklist – Parent (HPC)
Homework Completion Behaviors	2.32 (0.55)	1.80 (0.52)	.96
Homework Management Behaviors	1.24 (0.46)	0.86 (0.48)	.81
Children’s Organizational Skills Scale – Parent (COSS)
Task Planning	70.40 (13.80)	67.00 (14.35)	.24
Organized Actions	63.40 (4.93)	62.20 (4.86)	.25
Memory and Materials Management	69.00 (11.96)	63.20 (3.03)	.49
Adolescent Academic Problems Checklist – Parent (AAPC)
Academic Executive Functioning Skills	0.57 (0.23)	0.46 (0.36)	1.12
Disruptive Behavior during Academics	0.53 (0.39)	0.50 (0.28)	.05
Teacher Ratings
Children’s Organizational Skills Scale – Teacher (COSS)
Task Planning	59.00 (12.12)	59.00 (11.83)	0
Organized Actions	61.17 (8.76)	56.50 (7.06)	.48
Memory and Materials Management	56.67 (16.51)	58.17 (15.74)	−.09
Adolescent Academic Problems Checklist – Teacher (AAPC)
Academic Executive Functioning Skills	1.43 (0.59)	1.25 (0.53)	.31
Disruptive Behavior during Academics	1.08 (0.87)	0.97 (0.80)	.13

Note. Cohen’s d effect sizes corrected for dependence between means (>.2 = small; >.5 = medium; >.8 = large).