Table 4.

Human word recognition rate (WRR) stratification pairwise comparisons (RQ1).

Human WRR groups compared	t	p
1 & 2	1.15	.256
1 & 3	4.74	< .001
1 & 4	11.71	< .001
1 & 5	16.87	< .001
2 & 3	3.91	< .001
2 & 4	10.30	< .001
2 & 5	15.12	< .001
3 & 4	3.42	.001
3 & 5	6.28	< .001
4 & 5	3.78	< .001

Note. t statistic (t) and p value (p) for each t test between pairs of intelligibility groups. All comparisons were evaluated at the α = .005 (.05/10) level, df = 67.