use. This pattern of covariation would be reflected by slowed or inhibited normative developmental changes in alcohol use by individuals that exhibited shallower or nonnormative decreases in impulsivity. For example, under this pattern in the current dataset that spans ages 18 to 35, individuals that undergo relatively significant decreases in impulsivity from ages 18 to 25 would also demonstrate substantial decreases in alcohol involvement during the same time span. However, individuals characterized by shallower decreases in impulsivity from ages 18 to 25 would instead exhibit relatively higher levels of alcohol involvement during this period but would then show more normative levels of alcohol involvement at ages 29 and 35.
