Table 1.

Coefficients of the regression line

Coefficient	Estimate	t statistic	Significance
β 0	0.161	$t(60)=8.894$	< 0.001
${\beta }_{\mathrm{\Delta }d=5}$	0.048	$t(60)=2.815$	0.010
${\beta }_{\mathrm{\Delta }d=10}$	0.119	$t(60)=6.632$	< 0.001
${\beta }_{\overline{d}}$	–0.005	$t(60)=-5.566$	< 0.001

The regression model produced a good fit to the experimental data: $R^2=0.556,F(3,60)=25.00,P<0.001$. The β-coefficients are unstandardized for interpretability.