Table 5.

Results for forward stepwise regression models carried out for each of six speech perception tests.

Speech test	Step	r	r2	Adj r2	SE	r2 change	F change	df1	df2	Sign.	sign. predictors
Phoneme	1	0.43	0.18	0.12	22.76	0.18	2.93	2	26	0.071
	2	0.44	0.19	0.01	24.12	0.01	0.05	3	23	0.985
FAAF	1	0.69	0.48	0.44	9.60	0.48	12.23	2	27	0.001	BEA
	2	0.86	0.74	0.68	7.18	0.26	8.07	3	24	0.001	verbal WM
Words Quiet	1	0.73	0.53	0.50	2.62	0.53	15.48	2	27	0.001	BEA
	2	0.77	0.59	0.50	2.61	0.05	1.01	3	24	0.404
Words 0 dB SNR	1	0.66	0.43	0.39	2.47	0.43	10.16	2	27	0.001	BEA
	2	0.78	0.60	0.52	2.19	0.17	3.50	3	24	0.031	verbal WM
Words -4 dB SNR	1	0.25	0.06	-0.01	2.69	0.06	0.87	2	27	0.432
	2	0.60	0.35	0.22	2.36	0.29	3.64	3	24	0.027	verbal WM
MCRM	1	0.56	0.32	0.27	4.79	0.32	6.27	2	27	0.006	BEA
	2	0.77	0.59	0.51	3.93	0.27	5.35	3	24	0.006	response control, verbal WM
Q1	1	0.46	0.21	0.16	21.76	0.21	3.67	2	27	0.039	BEA
	2	0.49	0.24	0.08	22.75	0.02	0.23	3	24	0.873
Q2	1	0.26	0.07	0.001	15.75	0.07	0.99	2	27	0.384
	2	0.40	0.16	-0.01	15.83	0.09	0.90	3	24	0.455
Q3	1	0.35	0.12	0.06	21.82	0.12	1.90	2	27	0.169
	2	0.52	0.27	0.12	21.12	0.15	1.61	3	24	0.214
Q4	1	0.41	0.17	0.11	20.28	0.17	2.73	2	27	0.083
	2	0.42	0.17	0.01	21.45	0.01	0.05	3	24	0.985

In step 1 age and BEA was added. In step 2 the three latent cognitive factors (see Table 5) were entered. Acronyms as in Table 1.