The second edition of Frenchay Dysarthria Assessment (FDA-2) includes new powerful knowledge about motor speech disorders and their contribution to neurological diagnosis. This updated edition remains a well-established test for the measurement, differential description, and diagnosis of Dysarthria. It can be used in international research, as well as all clinical settings. The test results can be recorded on the FDA-2 Rating Form, indicating both the client’s strengths and weaknesses. The Rating Form also allows the clinician to compare the patient’s performance across all the items. Normative data are reported for adults without Dysarthria as well as patients with specific Dysarthria associated with confirmed medical diagnoses.