First degree

Master’s degree

Hellenic Open University graduates

${\alpha }_2^H$

${\alpha }_3^H$

${\alpha }_4^H$

R^UNDER_HOU

R^POST_HOU

−1.082

0.386

0.529

0.367

0.144

Traditional universities graduates

${\alpha }_2^T$

${\alpha }_3^T$

${\alpha }_4^T$

R^{UNDER_TRADITIONAL}

R^{POST_TRADITIONAL}

−0.239

0.073

0.141

0.078

0.068