Amends various provisions of SL 2009-451 as the title indicates. Amends the criteria used to award the dropout prevention grants to provide that: (1) when grant applications are of equal quality and merit, grants are to be awarded to applications from counties with no current grant recipients; and (2) grant priority is given to schools that have either a four-year cohort graduation rate of less than 60% in the most recent school year and in one of two prior school years, or a performance composite under 50% (was, a four-year cohort graduation rate of less than 65%). Also provides that priority is to be given to grant proposals containing multiple evidence-based programmatic elements that have been demonstrated to be effective and replicable. Allocates up to $100,000 for the 2011-12 fiscal year to be used by the Committee on Dropout Prevention (Committee) to study high schools that have significantly reduced their dropout rate over the past three years in order to identify programs that merit replication. Effective July 1, 2011.