\begin{tabular}{r|ccc}
\toprule
            & (1)      & (2)      & (3)      \\ \hline
(Intercept) &  19.978* &   15.809 &   14.167 \\
            & (11.688) & (11.084) & (11.519) \\
     Raises & 0.691*** &   0.379* &    0.352 \\
            &  (0.179) &  (0.217) &  (0.224) \\
   Learning &          &  0.432** &   0.394* \\
            &          &  (0.193) &  (0.204) \\
 Privileges &          &          &    0.105 \\
            &          &          &  (0.168) \\ \hline
          N &       30 &       30 &       30 \\
      $R^2$ &    0.348 &    0.451 &    0.459 \\
\bottomrule
\end{tabular}