Table 1.

Correlation between percent correct obtained with the low- and high-frequency bands presented together either monaurally or dichotically and the criterion normalized bandwidth of the low band (low), the criterion normalized bandwidth of the high band (high), or the sum of these normalized bandwidths (both). Correlations that are significant at the 0.05 and 0.01 levels of probability are noted by an asterisk or double asterisk, respectively.

	Normal listeners						Hearing-impaired listeners
	Quiet			Masking noise
	Low	High	Both	Low	High	Both	Low	High	Both
Monaural	0.65*	0.35	0.66*	0.87**	0.16	0.81*	0.09	−0.34	0.53
Dichotic	0.45	0.51	0.68*	0.59	0.20	0.85**	0.23	−0.49	0.78*