\begin{tabular}{*{4}{l}}
\hline
                  & Ordinary Square & Ortho Poly & Mean Centered   \tabularnewline
                   &Estimate   &Estimate   &Estimate \tabularnewline
                 &(S.E.)   &(S.E.)   &(S.E.) \tabularnewline
 \hline
 \hline
   (Intercept)     &7.896*** &4.088*** &3.062*** \tabularnewline
                 &(0.414)   &(0.120)   &(0.201)  \tabularnewline
   fh_pr           &-2.191***   & .        & .      \tabularnewline
                 &(0.279)   &         &        \tabularnewline
   I(fh_pr^2)      &0.224***   & .        & .      \tabularnewline
                 &(0.037)   &         &        \tabularnewline
   poly(fh_pr, 2)1      & .      &-15.713***   & .      \tabularnewline
                 &         &(1.680)   &        \tabularnewline
   poly(fh_pr, 2)2      & .      &10.205***   & .      \tabularnewline
                 &         &(1.664)   &        \tabularnewline
   fh_pr_mc          & .        & .      &-0.686*** \tabularnewline
                 &         &         &(0.063)  \tabularnewline
   I(fh_pr_mc^2)      & .        & .      &0.224*** \tabularnewline
                 &         &         &(0.037)  \tabularnewline
 \hline
 N                 &181       &181       &181       \tabularnewline
 RMSE             &1.608   &1.608   &1.608   \tabularnewline
 $R^2$             &0.405   &0.405   &0.405   \tabularnewline
 adj $R^2$         &0.398   &0.398   &0.398   \tabularnewline
 \hline
\hline
 
 \multicolumn{4}{c}{${*  p}\le 0.05$${*\!\!*  p}\le 0.01$${*\!\!*\!\!*  p}\le 0.001$}\tabularnewline
 \end{tabular}