A Process In Developing A Quality Model For Educational Web Application
Table 3: Summary statistics for person
| Before data was cleaned (n=61) | After data was cleaned (n=54) | ||
| Cronbach Alpha(α) | 0.96 (Good) | 0.97 (Good) | |
| Person | |||
| Reliability Index | 0.95 | 0.96 | |
| Separation Index | 4.58 (Very Good) | 5.05 (Very Good) | |
| Mean | 0.76 | 1.03 | |
| Standard Deviation (SD) | 0.03 | 1.44 | |
| Infit MNSQ | 1.00 (Very Good) | 1.00 (Very Good) | |
| Infit ZSTD | -.5 | -.3 | |
| Max | 4.38 | 4.96 | |
| Min | -1.12 | -1.49 | |
| Model error | 0.21 (Excellent) | 0.25 (Very Good) |