Skip to main content
. Author manuscript; available in PMC: 2015 Jan 1.
Published in final edited form as: Lang Learn Dev. 2013 Oct 11;10(1):51–67. doi: 10.1080/15475441.2013.802962

Table 4. Hierarchical Linear Regression of Demographic and Diagnostic Variables on Mean Fundamental Frequency Range (ΔF0).

Model Variable ΔR2 Total R2 B SE B β
Step 1 Minority status .009 .009 -2.98 4.12 -.046
Step 2 Education .013 .022 1.53 2.65 .039
Step 3 # children .017 .040 -8.98 4.48 -.124*
Step 4 Infant age .011 .050 -.063 -.036 -.109
Step 5 BDI score .012 .063 .001 0.55 .000
Step 6 Diagnosis .017 .080 -9.00 4.16 -.183*
*

p = .05.