Table 4.

Results of paired permutation tests comparing treatment outcome measures and standardized tests at each time point relative to pre-treatment and post-treatment for all participants (both clinical variants and both treatment dosage groups).

		Pre-treatment performance vs.				Post-treatment performance vs.
		Post-treatment	3-month follow-up	6-month follow-up	12-month follow-up	3-month follow-up	6-month follow-up	12-month follow-up
Trained	n	18	16	16	17	16	16	17
	t	−17.8	−11.5	−24.9	−8.4	2.7	2.2	3.6
	p	< 0.001*	< 0.001*	< 0.001*	< 0.001*	0.013*	0.714	0.031
Untrained	n	18	16	16	17	16	16	17
	t	−3.1	−3.6	−2.6	−1.3	−0.1	0.4	1.6
	p	0.003*	< 0.001*	< 0.001*	0.448	0.967	0.723	0.129
BNT	n	18	15	14	14	16	14	15
	t	−1.9	0.8	2.4	3.0	1.5	4.2	3.7
	p	0.003*	0.427	0.053	0.053	0.714	0.012*	0.027
WAB	n	18	16	16	15	16	16	15
	t	−0.1	2.4	3.2	5.1	3.7	3.7	5.5
	p	0.724	0.061	0.061	< 0.001*	0.013*	0.003*	< 0.001*
MMSE	n	18	15	16	15	15	16	15
	t	−0.2	−0.2	1.9	3.0	0.9	2.8	4.0
	p	0.868	0.934	0.090	0.004*	0.408	0.008*	< 0.001*

Note. One-tailed tests were used for trained items for all comparisons to pre-treatment performance. All other comparisons utilized two-tailed tests. Trained = trained items; Untrained = untrained items; BNT= Boston Naming Test; WAB = Western Aphasia Battery.

^*Bonferroni-corrected thresholds for significance: p < 0.013 for comparisons to pre-treatment performance and p < 0.017 for comparisons to post-treatment performance.