An ad hoc planning committee will plan and conduct a public workshop to discuss research methodologies related to demonstrating and assessing the clinical validity and clinical utility of molecular diagnostics that are used to guide treatment and management of oncology patients. The goal of the workshop will be to advance discussions among a broad array of stakeholders, including patients, providers, policy makers, payers, test developers, guideline developers, and others, around evidence needs for informed clinical and health policy decision-making. The planning committee will develop the workshop agenda, select and invite speakers and discussants, and moderate the discussions. An individually-authored summary of the workshop will be prepared by a designated rapporteur in accordance with institutional policy and procedures. This workshop will be held jointly with the Center for Medical Technology Policy.