ABOUT BOOK

... intensive extension in year 2 only 0.014 (0.034) 0.145 (0.340) 0.042 0.002 0.037 -0.007 -0.005 0.003 (0.035) (0.004) (0.054) (0.016) (0.041) (0.010) Received intensive extension in years 1 and 2 -0.063* (0.038) -0.630* (0.349) -0.040 ...