Because deficits in executive functions (EFs) characterize most neurodevelopmental disorders, it is appropriate to question the value of EFs for understanding learning disabilities. Two types of studies--those testing whether EFs moderate treatment effects and those testing the direction of effects between EFs and academic skills--are presented to support the idea that EFs are useful for the study of learning disabilities in the context of intervention. Moderator effects in reading and math intervention studies suggest that considering EFs to be properties of not only persons, but also interventions is important for understanding treatment effects and for designing more effective interventions. An experimental study comparing math word problem solving interventions and EF interventions provides evidence for bidirectional development of working memory and math word problem solving. Directions for future experimental research that systematically and more rapidly investigate growth in EFs and academic skills in individuals with learning disabilities are presented.