Test Quality Metrics and Analysis Questions

Assess and apply quantitative measures to drive testing and product decisions. Candidates should be able to define, calculate, and interpret metrics such as defect escape rate, test coverage percentage, regression suite execution time, mean time to resolution for incidents, and user satisfaction measures. Explain how to collect and instrument telemetry, build dashboards and reports, segment metrics by cohort or feature, and apply simple statistical techniques to detect regressions or trends. Discuss how metrics inform test prioritization, release readiness gates, and trade offs between test depth and execution time, and recognize common pitfalls such as proxy metrics and confusing correlation with causation.