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OLS regression on student marks (robust errors)
| (1) | |
|---|---|
| Textbook | 0.583** (0.281) |
| Journal article | 0.951*** (0.292) |
| Government/think tank data | 1.833*** (0.407) |
| Monograph | 0.639** (0.328) |
| Newspaper | 0.344 (0.352) |
| Periodical | 1.065 (0.628) |
| Website | − 0.015 (0.322) |
| Number of cites | 0.121 (0.951) |
| Constant | 47.275*** (1.219) |
| Observations | 257 |
| R2 | 0.217 |
*p < 0.10; **p < 0.05; ***p < 0.01
