Table 3

Proportions not meeting WALNA and NAPLAN benchmarks and ORs of not reaching benchmark in the exposed versus comparison cohorts by Indigenous status and testing domain

Non-IndigenousIndigenous
Testing yearExposed (%)Comparison (%)OR*(95% CI)Exposed (%)Comparison (%)OR* (95% CI)
Numeracy
WALNA
Year 318.112.11.6 (1.5 to 1.8)52.039.81.7 (1.5 to 1.9)
Year 521.113.31.8 (1.6 to 2.0)65.150.71.6 (1.5 to 1.8)
Year 729.019.01.8 (1.6 to 1.9)76.662.42.0 (1.7 to 2.2)
Year 9†19.711.81.8 (1.6 to 2.1)64.548.51.9 (1.6 to 2.4)
NAPLAN
Year 310.86.41.8 (1.5 to 2.1)37.625.11.8 (1.6 to 2.2)
Year 512.27.41.8 (1.5 to 2.1)46.833.51.7 (1.5 to 2.0)
Year 78.14.02.1 (1.7 to 2.7)36.524.61.8 (1.5 to 2.1)
Year 912.76.52.1 (1.7 to 2.5)48.631.52.0 (1.7 to 2.5)
Reading
WALNA
Year 310.36.41.7 (1.5 to 1.9)33.026.01.4 (1.3 to 1.6)
Year 514.08.91.7 (1.5 to 1.9)52.940.91.6 (1.5 to 1.8)
Year 723.916.11.7 (1.5 to 1.8)75.661.41.9 (1.7 to 2.2)
Year 9†16.99.91.9 (1.6 to 2.2)64.249.41.8 (1.5 to 2.2)
NAPLAN
Year 314.68.41.9 (1.6 to 2.2)44.231.01.8 (1.5 to 2.1)
Year 517.911.41.7 (1.5 to 2.0)60.846.21.8 (1.6 to 2.1)
Year 710.76.01.9 (1.5 to 2.2)45.631.61.8 (1.5 to 2.1)
Year 917.59.42.1 (1.8 to 2.4)61.941.62.3 (1.9 to 2.8)
Writing
WALNA
Year 321.314.01.7 (1.5 to 1.9)54.844.11.6 (1.5 to 1.8)
Year 518.912.61.6 (1.5 to 1.8)60.946.41.8 (1.6 to 2.0)
Year 726.618.61.6 (1.5 to 1.8)70.955.32.0 (1.8 to 2.3)
Year 9†15.310.01.6 (1.3 to 2.0)52.737.61.9 (1.5 to 2.3)
NAPLAN
Year 38.95.21.8 (1.5 to 2.2)46.830.72.0 (1.8 to 2.4)
Year 515.89.71.8 (1.5 to 2.1)57.742.41.9 (1.6 to 2.2)
Year 715.48.61.9 (1.6 to 2.3)58.540.32.1 (1.8 to 2.4)
Year 924.113.92.0 (1.7 to 2.3)69.650.82.2 (1.8 to 2.7)
Spelling‡
WALNA
Year 325.016.91.7 (1.5 to 1.8)61.548.91.7 (1.6 to 2.0)
Year 526.417.81.7 (1.5 to 1.8)67.052.21.9 (1.7 to 2.1)
Year 731.523.11.5 (1.4 to 1.7)71.657.91.8 (1.6 to 2.1)
NAPLAN
Year 316.710.01.8 (1.6 to 2.1)55.638.72.0 (1.8 to 2.4)
Year 516.110.01.8 (1.5 to 2.0)53.636.42.1 (1.8 to 2.4)
Year 714.88.02.0 (1.7 to 2.4)48.133.51.8 (1.6 to 2.1)
Year 920.612.91.8 (1.5 to 2.0)55.740.61.8 (1.5 to 2.2)
  • *Conditional analysis using logistic procedure adjusted for frequency matching variables maternal age and child’s year of birth.

  • †Year 9 WALNA for 2004–2007 for numeracy and reading; from 2005 to 2007 for writing.

  • ‡There were no spelling tests conducted under WALNA for Year 9 students.

  • NAPLAN, National Assessment Program – Literacy and Numeracy; WALNA, Western Australian Literacy and Numeracy Assessment.