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Table 3 Variance component model and OLS estimates

From: Movers and stayers in STEM enrollment in Italy: who performs better?

  Model I (a) Model I (b) Model I © Model II (a) Model II (b) Model III (a) Model III (b) OLS
Constant −0.0694*** (0.122) −0.0321*** (0.00591) −0.0762*** (0.0125) −0.0176 (0.0135) −0.0386** (0.0135) −0.1010*** (0.0267) −0.1744*** (0.0275) −0.0990*** (0.0053)
2009/2010        0.0396*** (0.0131) 0.0413*** (0.0058)
2010/2011        0.0497*** (0.0136) 0.0594*** (0.0057)
2011/2012        0.0672*** (0.0137) 0.0893*** (0.0057)
2012/2013        0.1011*** (0.0139) 0.1219*** (0.0058)
2013/2014        0.1248*** (0.0138) 0.0968*** (0.0060)
2014/2015        0.1709*** (0.0138) 0.1805*** (0.0058)
2015/2016        0.2097*** (0.0138) 0.2209*** (0.0057)
Female     0.00277 (0.00311) 0.0587*** (0.0036) 0.0583*** (0.00357) 0.0580*** (0.0036) 0.0538*** (0.0038)
HS Grade     0.662*** (0.00311) 0.7430*** (0.0040) 0.743*** (0.0040) 0.7440*** (0.0040) 0.7379*** (0.0043)
Female#HSGrade     −0.1920*** (0.0060) −0.193*** (0.0060) −0.1923*** (0.0060) −0.1837*** (0.0065)
Classic Lyceum     −0.197*** (0.00462) −0.1970*** (0.0046) −0.1970*** (0.0046) −0.1972*** (0.0046) −0.2283*** (0.0049)
Other HS     −0.3771*** (0.00321) −0.3780*** (0.0032) −0.3780*** (0.0032) −0.3780*** (0.0032) −0.3792*** (0.0034)
Late     −0.1541*** (0.00631) −0.1520***(0.0063) −0.1520*** (0.0063) −0.1541*** (0.0063) −0.1383 (0.0067)
Program Change     −0.2921*** (0.00961) −0.2930*** (0.0096) −0.2930*** (0.0096) −0.2945*** (0.0096) −0.1803*** (0.0081)
Stayers from South     −0.1712*** (0.0168) −0.1680*** (0.0168) −0.1830*** (0.0161) −0.1842*** (0.0160) −0.3182*** (0.0033)
Movers from South     −0.1942*** (0.00525) −0.1920*** (0.0052) −0.1920*** (0.0052) −0.1924*** (0.005) −0.2534*** (0.0054)
Movers from N/C     0.0168 (0.00943) 0.0161 (0.0094) 0.0135 (0.0094) 0.0121 (0.0094) −0.0006 (0.0092)
Degree classification No No No No No Yes Yes Yes
Random components
 var (Programs) 0.150*** (0.0075) 0.171*** (0.0077) 0.142*** (0.0072) 0.114*** (0.0073) 0.114*** (0.0061) 0.111*** (0.0058)
 var (Programs_Cohorts) 0.039*** (0.0012) 0.175*** (0.0036) 0.039*** (0.0011) 0.039*** (0.0012) 0.040*** (0.0012) 0.036*** (0.0011)
 var (Residual) 0.803*** (0.018) 0.803*** (0.0036) 0.803*** (0.0018) 0.696*** (0.0015) 0.695*** (0.0016) 0.695*** (0.0016) 0.695*** (0.0015)
 − LogL 537,632 539,552 542,208 508,876 508,369 508,273 508,084  
 AIC 1,075,273 1,079,111 1,084,423 1,017,779 1,016,767 1,016,605 1,016,240
 N 406,587 406,587 406,587 406,587 406,587 406,587 406,587 406,587
  1. Standard Deviations between brackets. Significance levels as follows: *** p < 0.01, ** p < 0.5, * p < 0.1