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. 2011 Jul 17;22(5):1038–1051. doi: 10.1093/cercor/bhr172

Table 3.

Regression analyses: slope of accuracy as dependent variable

Model/variable β βstd Pβ R2 ΔR2 PΔ
Model 1 0.11 – –
    Age −0.002 −0.289 0.022
    Average magnitude −0.016 −0.162 0.192
Model 2a 0.20 0.09 0.02
    Slope of activity 0.153 0.312 0.016
Model 3a 0.16 0.05 0.23
    WMH volume −3−6 −0.232 0.279
    WMH group 0.037 0.360 0.093
Model 4 0.22 0.06 0.07
    Slope of activity 0.131 0.267 0.069
Model 5a 0.17 0.06 0.24
    PiB FLR −0.117 −0.290 0.154
    PiB group 0.007 0.078 0.692
Model 6 0.29 0.12 0.01
    Slope of activity 0.187 0.380 0.011

Note: Results of each model are relative to the previous model unless otherwise noted. Each subsequent model contains variables in the previous model plus the listed variables. Variables were entered in the listed order. βstd = standardized beta coefficient.

a

Contains all variables in Model 1 plus listed variables, ΔR2 is relative to Model 1.