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Table 9 Comparisons of mean mastery probabilities in the first and second tests

From: On the usefulness of CDA-based score reporting: implications for self-regulated learning

  Mean/SD (1st test) Mean/SD (2nd test) t-statistic (df) p-value
1. Simple present/ progress 0.632/0.364 0.677/0.353 −2.027 (216) 0.044*
2. Zero conditional 0.340/0.405 0.323/0.381 0.636 (216) 0.526
3. Simple past/progressive 0.539/0.389 0.472/0.366 2.970 (216) 0.003*
4. Participles 0.749/0.387 0.762/0.376 −2.464 (216) 0.015*
5. Subject-verb agreement 0.446/0.356 0.588/0.359 −5.621 (216) 0.000*
6. Relative pronoun 0.538/0.338 0.612/0.317 − 2.801 (216) 0.006*
7. Used to 0.317/0.403 0.389/0.415 − 2.740 (216) 0.007*
8. Vocabulary 0.860/0.292 0.873/0.278 − 1.207 (216) 0.229
9. Expressions 0.794/0.327 0.831/0.305 −3.020 (216) 0.003*