Research Article
The Effects of Reusing Written Test Items: A Study Using the Rasch Model
Table 1
Mean and standard deviation of item easiness parameter.
| | M/SD | Min/Max | |
| Item easiness parameter data matrix (a) | −0.06/1.17 | −2.95/2.98 | 33 |
| Item easiness parameter data matrix (b) | 0.0012/1.33 | −2.95/3.32 | 50 | First use (items) | −0.52/1.23 | −2.95/1.46 | 15 | Second use (items) | 0.13/1.68 | −2.66/3.32 | 15 |
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