Table 3 PCARs of Qiyas for L1 Arabic language test data
Standardized residual variance (in Eigenvalue units) | Â | Observed (%) | Â | Expected (%) |
|---|---|---|---|---|
Total raw variance in observations | 59.4 | 100.00 | Â | 100.00 |
Raw variance explained by measures | 14.4 | 24.20 | Â | 24.30 |
Raw variance explained by persons | 6.1 | 10.30 | Â | 10.40 |
Raw variance explained by items | 8.3 | 13.90 | Â | 13.90 |
Raw unexplained variance (total) | 45 | 75.80 | 100.00 | 75.70 |
Unexplained variance in first contrast | 2.3 | 3.80 | 5.00 | Â |
Unexplained variance in second contrast | 1.9 | 3.30 | 4.30 | Â |