Table 2.

Logit function coefficients derived from multivariate analysis of experimental variables. Coefficients are listed for noise and DP level at 2f₁-f₂ in the null-suppressor condition. Coefficients for 2f₂-f₁ and R1/R2 are omitted.

	750	1000	1500	2000	3000	4000	6000	8000
Predictor
Ldp750	0.112	0.086	−0.004	0.008	0.026	0.009	−0.003	0.042
Ldp1000	0.136	0.108	0.022	0.002	−0.053	−0.037	−0.055	0.031
Ldp1500	0.072	0.078	0.148	0.087	0.045	0.019	0.015	0.019
Ldp2000	0.044	0.066	0.161	0.164	0.063	0.012	0.015	−0.005
Ldp3000	−0.022	0.007	0.021	0.100	0.137	0.079	0.058	0.022
Ldp4000	−0.034	−0.029	−0.072	−0.067	0.016	0.077	0.017	0.039
Ldp6000	0.030	0.015	0.008	0.064	0.099	0.079	0.132	0.082
Ldp8000	0.089	0.057	0.118	0.051	0.069	0.062	0.167	0.117
Ndp750	−0.046	−0.035	−0.031	−0.010	0.008	0.005	0.017	0.003
Ndp1000	−0.040	−0.031	−0.027	−0.014	−0.031	−0.019	0.007	0.008
Ndp1500	−0.080	−0.052	−0.014	−0.006	−0.008	−0.004	0.018	0.005
Ndp2000	−0.057	−0.036	−0.021	−0.004	−0.014	−0.009	0.013	0.009
Ndp3000	−0.017	−0.010	−0.014	0.001	−0.006	−0.006	−0.003	−0.001
Ndp4000	−0.008	−0.006	−0.009	−0.002	0.008	0.005	0.004	0.001
Ndp6000	−0.002	−0.002	−0.003	−0.006	0.000	0.002	0.001	0.001
Ndp8000	0.000	0.000	−0.002	0.000	0.000	−0.001	−0.002	−0.002