Table 6 Multilevel modelling of NAMER 2009 and 2014 mathematics achievement – Grade 6

Variables

B (SE)

B (SE)

B (SE)

B (SE)

Student-level

2009

2014

2009

2014

2009

2014

2009—2014

Gender (male)

12.2 (2.62)*

4.9 (2.27)*

12.5 (2.66)*

4.9 (2.22)*

–

5.1 (2.20)*

12.5 (2.7)*

Books at home (more than 100)

23.6 (2.8)*

21.3 (2.15)*

23.6 (2.84)*

21.1 (2.19)*

–

15.9 (2.22)*

22.2 (1.8)*

Language spoken at home (English/Irish)

− 2.8 (4.13)

− 7.33 (3.52)*

− 2.5 (4.49)

− 8.2 (4.51)

–

− 9.6 (4.65)*

− 5.9 (3.2)

Country of birth (Ireland)

–

–

0.2 (3.24)

1.0 (3.91)

–

2.6 (3.97)

0.4 (2.6)

Parent education (third-level)

–

–

–

–

–

16.5 (2.16)*

–

Year (2014)

–

–

–

–

–

–

16.8 (5.4)*

School-level

Disadvantaged status (Disadvantaged)

− 20.0 (7.36)*

− 5.2 (6.48)

− 20.1 (7.35)*

− 5.3 (6.49)

–

− 2.5 (6.47)

− 12.2 (5.1)*

Interactions

Year*Gender

–

–

–

–

–

–

− 7.7 (3.5)*

Intercept

243.2 (6.3)*

261.5 (4.27)*

243.0 (6.23)*

261.6 (4.47)*

–

253.3 (4.41)*

244.6 (5.3)*

Variance explained (R²)

Student-level

9.0%

5.8%

9.1%

5.7%

–

8.7%

9.2%

School-level

13.7%

2.0%

13.8%

2.0%

–

0.5%

7.2%

Overall

10.0%

5.4%

10.0%

5.3%

–

7.8%

8.9%