Table 6.

Coefficients of determination (R ²) between each aphasia severity measure (AQ or SCANT) and each WAB subtest, estimated from the 177 participants in the LESMAP and POLAR studies.

Measure	IC	FLU	Yes/no questions	Aud. word recognition	Sequential commands	Repetition	Object naming	Word fluency	Sentence completion	Responsive speech
AQ	.87	.72	.39	.57	.59	.91	.86	.65	.73	.81
SCANT	.72	.55	.30	.41	.40	.74	.77	.62	.61	.68

Note. AQ = Aphasia Quotient; SCANT = Severity-Calibrated Aphasia Naming Test; WAB = Western Aphasia Battery; LESMAP = lesion mapping in aphasia; POLAR = predictors of language outcomes after rehabilitation; IC = spontaneous speech information content; FLU = spontaneous speech fluency.