Currently GS 115C-83.15 requires the State Board of Education (SBE) to use the Education Value-Added Assessment System (EVAAS) to calculate the school performance score for each school in the state based on a formula adding the school achievement score and the school growth score. Amends subsection (d) of GS 115C-83.15 to require that the school achievement score account for 50% (was, 80%) and the school growth score for 50% (was, 20%) of the school performance score. Amends subsection (f), renaming the introduction of the subsection Indication and Significance of Growth (was, Indication of Growth), adding language that requires the SBE to assign a performance grade of one letter higher than otherwise determined for a school that received a letter grade of B or lower, if the school has exceeded growth. 

Directs the SBE to create a task force within the Department of Public Instruction to study the overall school performance grading system calculation methods and distribution. Sets out other factors the task force must consider. Requires the SBE by December 15, 2016, to report to the Joint Legislative Education Oversight Committee on the study findings. Appropriates $100,000 from the General Fund to the Department of Public Instruction to fund and conduct the above study. Effective July 1, 2016.