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. 2012 Oct 8;7(10):e46319. doi: 10.1371/journal.pone.0046319

Table 16. OLS Regressions of Economics Weighted Average and Mathematics Weighted Average on Right Hand 2D:4D and its Square.

Manila
Economics Weighted Average Mathematics Weighted Average
Female Male Female Male
Explanatory Variables OLS OLS OLS OLS
Right hand 2D:4D 2.614 −113.175*** + 3.450 −177.03* + 4.3406* −94.946*** 0.484 −197.373***
(2.081) (63.250) (2.723) (58.930) (2.329) (52.119) (3.739) (113.408)
Square of Right hand 2D:4D 57.595*** + 94.147* + 49.386*** + 103.215***
(30.789) (30.960) (25.662) (60.004)
Constant −0.193 57.595 −0.614 85.755 −2.038 47.793 2.166 96.854
(2.074) (32.439) (2.645) (27.992) (2.321) (26.432) (3.631) (53.499)
R-squared (OLS) 0.022 0.063 0.033 0.0996 0.046 0.0685 0.0004 0.0442
Adjusted R-squared (OLS) 0.008 0.0353 0.0124 0.0604 0.0328 0.0423 0.0209 0.0027
R-squared (Stepwise) 0.000 0.063 0.000 0.0996 0.048 0.048 0.000 0.000
N 72 72 49 49 74 74 49 49
p-value(F) (OLS) 0.2131 0.1078 0.2114 0.0896 0.0665 0.0805 0.8976 0.3533
F-stat (OLS) 1.58 2.3 1.61 2.54 3.47 2.61 0.02 1.06
Rmin (OLS) 0.983 0.94 0.961 0.956

Note: The numbers in brackets are OLS standard errors; * Significant at 10%, ** 5%, *** 1%; + p-value equal or less than 0.10 tolerance level in backward stepwise regressions, implying that the variable ought not to be removed from the model. Rmax (Rmin) is the value of right digit ratio that maximizes (minimizes) the dependent variable, equal to -b1/(2×b2), computed only for significant values.