Table 1.

Means and standard deviations for the raw and z-transformed (re: T1) slopes for change from T1 to T2.

Measure	N	Mean raw	SD raw	Mean z	SD z
PT 500 Hz	95	1.14	.83	.10*	.07
PT 1400 Hz	96	.96	.88	.07*	.06
PT 4000 Hz	95	1.27	1.11	.07*	.06
GDT 1000 Hz	88	.04	.22	.01	.06
GDT 3500 Hz	91	.34	.27	.08*	.07
TO Mono2	93	−.58	1.72	−.02*	.07
TO Mono4	72	−.41	4.22	−.01	.05
TO DichID	89	−.18	2.45	−.01	.08
TO DichLOC	85	.02	1.82	.00	.06
WAIS-III PicComp	95	−.06	.33	−.02	.09
WAIS-III Vocab	98	−.05	.63	−.01	.06
WAIS-III DigSyC	98	−.64	1.09	−.04*	.07
WAIS-III Similar	98	−.09	.43	−.02	.09
WAIS- III BlkDsgn	98	−.55	.76	−.05*	.08
WAIS-III Arith	98	−.12	.35	−.04*	.10
WAIS-III MtrxRs	98	−.10	.43	−.02	.09
WAIS-III DigSpn	98	−.17	.31	−.04*	.08
WAIS-III Info	98	−.08	.23	−.02*	.05
WAIS-III PicArr	98	−.11	.47	−.03	.11
WAIS-III Compreh	98	−.09	.42	−.02	.10
WAIS-III SymSch	97	−.39	.60	−.06*	.09
WAIS-III LtNmSq	98	−.14	.24	−.07*	.11

Note. Sample sizes for each measure are also shown, and means that significantly (p < .01, unadjusted) differed from zero are marked by an asterisk. For the raw slope, the pure-tone threshold slopes are dB/year, the temporal-processing slopes are ms/year, and the WAIS-III slopes are scale points/year. PT = pure-tone threshold; GDT = gap-detection threshold; TO = temporal-order threshold; Mono2 = monaural two-item identification; Mono4 = monaural four-item identification; DichID = dichotic two-item vowel identification; DichLOC =dichotic two-item ear or location identification; WAIS-III = Wechsler Adult Intelligence Scale–Third Edition.