Instruction: Outline the key elements of your study design, including the selection of the cutoff score, assignment of treatment, and the statistical methods for estimating the causal effect.
Context: This question evaluates the candidate's ability to apply the Regression Discontinuity Design in a practical scenario. Candidates must demonstrate understanding of how to appropriately set a cutoff point for treatment assignment, manage potential discontinuities, and use RDD to estimate causal effects accurately while addressing any potential confounding factors.