Table 3.

Mean, standard deviation (SD), and range of frequency response slopes in user devices compared to targets used for fitting (DSL or NAL prescription, depending on group assignment), as well as the NAL-NL2 and DSL m[i/o] prescriptions.

	Slope between 0.5 and 4 kHz (dB/octave)
	Level		User	Target	NAL-NL2	DSL m[i/o]
DSL group	50	Mean	4.6	4.8	9.4	5.6
		SD	3.3	3.7	2.8	3.4
		Range	−7.7 to 12.3	−8.3 to 15.3	−3.5 to 16.2	−8.3 to 15.3
	65	Mean	4.5	5.7	9.8	6.2
		SD	3.2	3.7	2.9	3.6
		Range	−8.7 to 13.3	−8.0 to 16.7	−3.1 to 18.9	−8.0 to 16.7
	80	Mean	3.8	4.42	7.6	4.8
		SD	2.8	3.16	2.7	3.2
		Range	−7.3 to 11.7	−6.7 to 14.7	−0.7 to 18.7	−6.7 to 14.7
NAL group	50	Mean	5.4	5.2	9.2	5.0
		SD	3.5	2.9	2.6	3.1
		Range	−7.7 to 12.0	−2.7 to 11.3	−0.7 to 15.5	−5.3 to 14.3
	65	Mean	5.1	5.3	9.7	5.58
		SD	3.2	3.0	2.7	3.43
		Range	−6.3 to 11.3	−4.0 to 11.0	−1.5 to 15.6	−5.0 to 16.3
	80	Mean	4.1	3.5	7.9	4.1
		SD	2.6	2.6	2.5	3.0
		Range	−3.3 to 10.0	−6.3 to 9.7	−1.0 to 15.4	−4.0 to 13.7