Table 2. Correlation between the PASAT and DMST Scores in IWA and Unmatched Control Group .

Groups	Tests	n	r	p
Control, 18-30 years	PASAT and forward DMST	70	0.52	< 0.001
	PASAT and backward DMST	70	0.48	< 0.001
Aphasia, 18-60 years	PASAT and forward DMST	25	0.72	< 0.001
	PASAT and backward DMST	25	0.52	0.006

DMST: digit memory span test, IWA: individual with aphasia, PASAT: Paced Auditory Serial-Addition Test