The New York Times considers new research from Taiwan that suggests the possibility that the relative neurocognitive immaturity of younger children in a school cohort, rather than ADHD, results in a higher rate of diagnoses and medication. “In early childhood classrooms, where a month or two age difference can make a big difference, teachers perceive the youngest children in the class as having more attention struggles, and behavioral struggles, than the older children, irrespective of the child’s actual age,” the article quotes one expert as saying. “When those teachers flag those struggles, the path to a diagnosis is paved.”