Fig 13. Concurrent validity with respect to the Western Aphasia Battery (WAB).

Each QAB summary measure was correlated with most similar WAB measure, except for Reading, which was omitted because the written language section of the WAB was not administered. All correlations were significant (p < 0.001). Aud word rec = Auditory word recognition; Yes/no+SC = the sum of Yes/no questions and Sequential commands; Naming/WF = Naming and word finding; AQ = Aphasia quotient.