Table 2.

Summary of correlations between mean direct magnitude estimation informativeness ratings and the linguistic variables for the Comprehensive Aphasia Test (CAT) and Tree pictures.

Linguistic measure	CAT picture		Tree picture
	r (strength)	p (significance)	r (strength)	p (significance)
NCIU	.879 (very strong)	< .000*	.902 (very strong)	< .000*
%CIU	.695 (strong)	.001*	.652 (strong)	.002*
NP	.632 (strong)	.003*	.634 (strong)	.003*
PID	.217 (weak)	.357	−.068 (weak)	.777
MLU-w	.765 (strong)	< .000*	.651 (strong)	.002*

Note. The strength of correlation was defined as in Evans (1996). NCIU = number of correct information units; %CIU = percentage of correct information units; NP = number of propositions; PID = propositional idea density; MLU-w = mean length of utterance in words.

^* p < .01 (significant at Bonferroni-corrected levels for multiple comparisons for each picture).