An IERI – International Educational Research Institute Journal
Table 5 Standard Deviations of Different Factors of Analytical Decisions for Cross-Sectional Country Means in PISA Mathematics Obtained from a Variance Component Analysis
Source of Variance | 2003\(^{\mathrm{a}}\) | 2006\(^{\mathrm{a}}\) | 2009\(^{\mathrm{a}}\) | 2012\(^{\mathrm{a}}\) | |
|---|---|---|---|---|---|
1 | Country | 48.69 | 47.23 | 44.52 | 43.30 |
2 | Sample | 0.00 | 0.82 | 1.80 | 0.00 |
3 | Items | 0.00 | 0.80 | 1.02 | 1.19 |
4 | Estimation | 0.02 | 0.71 | 0.36 | 0.00 |
5 | Calibration | 4.78 | 1.05 | 0.81 | 0.01 |
6 | Country:sample | 0.10 | 0.02 | 0.09 | 0.00 |
7 | Country:items | 2.58 | 2.02 | 1.71 | 4.63 |
8 | Country:estimation | 0.10 | 0.07 | 0.09 | 0.00 |
9 | Country:calibration | 0.15 | 0.17 | 0.12 | 0.12 |
10 | Sample:items | 0.00 | 0.00 | 0.00 | 0.97 |
11 | Sample:estimation | 0.00 | 0.42 | 0.38 | 0.16 |
12 | Sample:calibration | 0.00 | 0.22 | 0.04 | 0.02 |
13 | Estimation:items | 0.03 | 0.08 | 0.47 | 0.86 |
14 | Calibration:items | 0.00 | 0.00 | 0.08 | 0.36 |
15 | Calibration:estimation | 0.02 | 1.22 | 1.58 | 0.20 |
16 | Country:sample:items | 0.00 | 0.00 | 0.00 | 0.12 |
17 | Country:sample:estimation | 0.00 | 0.00 | 0.00 | 0.00 |
18 | Country:sample:calibration | 0.05 | 0.06 | 0.03 | 0.06 |
19 | Country:estimation:items | 0.09 | 0.00 | 0.10 | 0.60 |
20 | Country:calibration:items | 0.04 | 0.10 | 0.05 | 0.07 |
21 | Country:calibration:estimation | 0.06 | 0.00 | 0.09 | 0.11 |
22 | Sample:estimation:items | 0.00 | 0.00 | 0.03 | 0.15 |
23 | Sample:calibration:items | 0.00 | 0.24 | 0.22 | 0.33 |
24 | Sample:calibration:estimation | 0.00 | 3.87 | 6.65 | 3.03 |
25 | Calibration:estimation:items | 0.01 | 0.10 | 0.26 | 0.51 |
26 | Residual | 0.37 | 0.44 | 0.42 | 0.45 |