Assess learners' ability to apply statistical process control (SPC) to monitor and improve laboratory assay performance, including selecting and constructing appropriate control charts (X‑bar/R/S, individuals, Levey‑Jennings), calculating and interpreting control limits, distinguishing common vs. special‑cause variation (including relevant control rules), choosing subgroup size and sampling frequency, assessing process capability and measurement uncertainty, performing root‑cause analysis and corrective actions for out‑of‑control signals, and using SPC data for ongoing quality improvement and documentation.