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Table 3 IV 2SLS estimates of the first stage model, dependent variable: friends in the classroom
From: Introduction to instrumental variables and their application to large-scale assessment data
Predictors | Friends (for reading) | Friends (for mathematics) | Friends (for science) |
|---|---|---|---|
Distance | −0.0027*** (0.0004) | −0.0027*** (0.0004) | −0.0028*** (0.0004) |
PISA 2009 score | −0.0005*** (0.0001) | −0.0004** (0.0001) | −0.0004** (0.0001) |
ESCS | −0.0240** (0.0101) | −0.0240** (0.0102) | −0.0249** (0.0102) |
Live in the countryside | 0.0047 (0.0173) | 0.0043 (0.0174) | 0.0062 (0.0173) |
Type of school | |||
General comprehensive | (Reference category) | ||
Vocational with comprehensive program | −0.0421* (0.0241) | −0.0415* (0.0237) | −0.0383 (0.0239) |
Basic vocational school | 0.0421 (0.0346) | 0.0543 (0.0332) | 0.0564* (0.0332) |
Female | −0.0119 (0.0170) | −0.0338* (.0177) | −0.0278 (0.0172) |
N | 4951 | 4951 | 4951 |
F (excluded instrument) | 41.7518 | 39.9005 | 41.821 |
Adj. R2 | 0.0272 | 0.0266 | 0.0266 |