Table 1 Particulars and psychometrics of the 7 BAQ tests with 50 items each
From: How important is distractor efficiency for grading Best Answer Questions?
Test | Year | St n | Type | Mean DIFi (SD) | Mean DISi (SD) | Items with 100% DE | Items with DE of ≥ 50% | Mean FD (SD) |
|---|---|---|---|---|---|---|---|---|
1 | 2013-14 | 87 | FPE 5-op | 0.60 (0.25) | 0.22 (0.16) | 6 (12%) | 32 (64%) | 2.1 (1.07) |
2 | 2014-15 | 121 | FPE 5-op | 0.65 (0.23) | 0.22 (0.16) | 6 (12%) | 34 (68%) | 1.96 (1.20) |
3 | 2015-16 | 125 | FPE 5-op | 0.69 (0.25) | 0.17 (0.14) | 5 (10%) | 30 (60%) | 1.94 (1.24) |
4 | 2016-17 | 112 | FPE 5-op | 0.53 (0.28) | 0.14 (0.13) | 8 (16%) | 34 (68%) | 2.16 (1.2) |
5 | 2016-17 | 24 | Sup 5-op | 0.54 (0.25) | 0.16 (0.20) | 1 (2%) | 30 (60%) | 1.72 (0.95) |
6 | 2017-18 | 118 | FPE 5-op | 0.63 (0.28) | 0.18 (0.15) | 3 (6%) | 27 (54%) | 1.72 (1.23) |
7 | 2018-19 | 122 | FPE 4-op | 0.69 (0.23) | 0.12 (0.12) | 8 (16%) | 25 (50%) | 1.48 (0.97) |