Online Diagnostic Assessment is a tool developed by the Defense Language Institute, Foreign Language Center to help you, the foreign language learner, evaluate and manage your learning.

ODA identifies your strengths and needs in a foreign language, and provides you with individualized, relevant feedback. This feedback is based on a sampling of your abilities across a variety of levels, topics, tasks, and specific linguistic features.

All Assessment texts are selected or adapted from authentic sources in accordance with Interagency Language Roundtable (ILR) level descriptions.