. 2011 Sep;130(3):1663–1672. doi: 10.1121/1.3613930

Table 6.

Hierarchical multiple regression predicting V-only word recognition with frequency and measures of lexical competition. Note: β represent values at the final step.

Homophene group size and phi-square density				Probability density and phi-square density
6A	β	R²	ΔR²	6C	β	R²	ΔR²
Step 1: Frequency	0.39	0.05	0.05^a	Step 1: Frequency	0.37	0.05	0.05^a
Step 2: Homophene group size	0.20	0.21	0.16^a	Step 2: Probability density	−0.06	0.19	0.13^a
Step 3: Phi-square density	−0.74	0.37	0.16^a	Step 3: Phi-square density	−0.54	0.36	0.18^a
6B	β	R²	ΔR²	6D	β	R²	ΔR²
Step 1: Frequency	0.39	0.05	0.05^a	Step 1: Frequency	0.37	0.05	0.05^a
Step 2: Phi-square density	−0.74	0.36	0.31^a	Step 2: Phi-square density	−0.54	0.36	0.31^a
Step 3: Homophene group size	0.20	0.37	0.01	Step 3: Probability density	−0.06	0.36	0.00

p < 0.01.