Table 1.

Listeners' age, test ear, whether they were regular hearing aid users, and their thresholds in dB HL at each frequency (in kHz).

				Threshold, dB HL
Listener	Age	Ear	Aid?	0.25	0.5	0.75	1.0	1.5	2.0	3.0	4.0	6.0	8.0
HI 01	59	R	Y	20	20	5	10	15	50	50	60	60	65
HI 02	68	R	N	15	10		10	25	40	50	60		55
HI 03	47	L	N	15	25	30	35	40	45	50	50	45	40
HI 04	59	R	Y	20	25	35	35	40	40	50	45	55	65
HI 05	69	R	Y	15	15	20	30		35	50	60	50	70
HI 06	56	L	N	10	10		15		25	35	45	55	60
HI 07	50	L	N	20	20	20	25	20	20	45	45	65	65
HI 08	21	R	N	25	35	40	40	45	50	45	40	45	45
HI 09	48	R	Y	20	30	40	50		55		60		65
HI 10	34	L	N	15	20	35	45	50	45	50	50	45	45
HI 11	18	R	Y	25	30	40	50		45		55		50
HI 12	68	L	Y	15	15	25	30	45	45	45	50	55	50
HI 13	61	R	Y	15	25	35	35	40	50	60	55	55	45
HI 14	66	R	N	25	15		5	25	35	60	65	75	50
HI 15	56	R	N	35	40		45		45	45	55	55	55
HI 16	70	R	Y	10	15		25	30	45	50	60	65	60
HI 17	57	R	Y	40	40		40	40	60		65		65
HI 18	71	R	Y	35	30		40		45		55	55	70
HI 19	51	R	N	15	10		25		35		45	65	65
HI 20	59	R	N	25	30		40		45	55	65	70	80
HI 21	74	R	N	5	10		15	20	45	70	70	75	55
HI 22	64	R	N	15	30		35		35	30	35	50	55
HI 23	53	R	N	20	20		25		35		45		55
HI 24	71	R	Y	15	30		30		30	45	50		55
Mean	56.3			19.6	22.9	29.5	30.6	33.5	41.7	49.2	53.5	57.8	57.7