https://orcid.org/0000-0002-1040-0978
Figures & data
Table 1. Summary Statistics for the Whole Dataset
Table 2. Means of Class Ending Scores vs. Class Final Scores
Table 3. Means of No Extension vs. Extension Final Scores
Table 4. Extension Option as a Treatment
Table 5. Semester Means
Table 6. Summer Means
Table 7. T-Tests of Final Means among Sections
Table 8. Final Passing Rates Before, During, and After the Experiment