Table 1 Descriptive statistics
From: C-Test construct validity: Evidence from nonparametric item response theory
| Â | Range | Mean | SD | Skewness | Kurtosis |
|---|---|---|---|---|---|
Item1 | 5.00 | 4.78 | 1.18 |  − 0.90 | 0.20 |
Item2 | 5.00 | 5.11 | 1.16 |  − 1.18 | 0.48 |
Item3 | 5.00 | 4.47 | 1.44 |  − 0.79 | − 0.37 |
Item4 | 5.00 | 4.64 | 1.35 |  − 0.65 | − 0.78 |
Item5 | 5.00 | 5.04 | 1.29 |  − 1.17 | 0.36 |
Item6 | 6.00 | 4.59 | 1.62 |  − 0.81 | − 0.58 |