Table 5. Effects on All Grades across Student Subgroups
GenderAgeHigh School GradeMother Tongue
Female (1)Male (2)20 or Older (3)19 or Younger (4)Above Campus Median (5)Below Campus Median (6)English (7)Other (8)
Online only−0.083 [0.587]1.120 [0.757]−1.518 [1.357]0.804 [0.499]−0.618 [0.659]0.664 [0.796]1.245* [0.660]−0.185 [0.665]
Text messaging−0.493 [0.539]0.339 [0.668]−0.366[1.177]−0.123 [0.451]−0.518 [0.614]−0.235 [0.687]0.150 [0.613]−0.364 [0.584]
Coaching3.176 [2.208]6.728* [3.455]7.036 [5.859]4.755** [2.132]2.242 [2.611]4.829* [2.646]5.104 [3.269]4.834*** [1.799]
Control mean [Standard deviation]69.804 [14.958]68.070 [17.264]67.208 [17.952]69.186 [15.836]72.492 [14.564]63.942 [16.617]68.642 [16.119]69.121 [16.203]
Obs.16,01613,5754,50025,09111,44111,09013,29316,298
R-squared0.0170.0270.0180.0240.0310.0110.0270.019
F-stat1.1131.8631.0162.8580.7021.5192.0872.786
Prob > p0.3430.1340.3850.03570.5510.2080.09990.0394
  • Notes: The dependent variable in each regression is course grades. The unit of observation is a student-course. All regressions control for campus fixed effects, first-year status, age in first year, and gender. Standard errors clustered at the student level are reported in brackets. Significant at *p<0.10, **p<0.05, ***p<0.01.