Table 1.
Mean performance, CJ, and percentage of answers maintained
| 2nd grade | 4th grade | |||
|---|---|---|---|---|
| T1 | T2 | T1 | T2 | |
| Open-ended questions | ||||
| % correct answers | 42.75 (23.31) | 52.48 (19.84) | 49.28 (22.06) | 50.21 (19.53) |
| % incorrect answers | 33.70 (18.91) | 35.87 (18.77) | 35.63 (20.42) | 36.57 (20.38) |
| % omissions | 17.81 (18.98) | 8.64 (13.71) | 14.62 (15.13) | 12.96 (11.56) |
| CJ | 5.11 (1.32) | 4.87 (1.19) | 4.70 (1.24) | 4.56 (1.21) |
| % answers maintained | 72.38 (24.78) | 65.52 (22.83) | 60.07 (23.19) | 58.06 (20.68) |
| True-false questions | ||||
| % correct answers | 57.73 (16.38) | 68.84 (16.49) | 56.95 (15.19) | 64.02 (13.59) |
| CJ | 5.29 (1.22) | 5.30 (1.13) | 5.21 (1.15) | 5.29 (1.11) |
| % answers maintained | 71.73 (25.24) | 70.07 (22.01) | 66.37 (23.24) | 69.11 (21.86) |
Note. Standard deviations in parentheses