An IERI – International Educational Research Institute Journal
 | Test score distribution | ||||||
---|---|---|---|---|---|---|---|
Mean | SD | Min | \(q_1\) | Median | \(q_3\) | Max | |
L2 | |||||||
 Reading | 201.3 | 40.1 | 80.7 | 170.3 | 198.2 | 228.3 | 293.6 |
 Mathematics | 201.1 | 40.6 | 74.8 | 170.0 | 202.6 | 225.7 | 308.5 |
L5 | |||||||
 Reading | 200.4 | 39.7 | 26.5 | 175.9 | 199.4 | 224.4 | 343.2 |
 Mathematics | 201.0 | 39.7 | 56.5 | 172.2 | 201.2 | 227.4 | 323.2 |