Table 1

Item completion rates by school type and gender

School type
High SESMiddle SESLow SESTotalSignificance of linear trend for school typeSignificance of gender differences
N
    Boys199162215576
    Girls3884673931248
Father's occupation able to be coded
    Boys59.8%48.8%44.7%51.0%χ2[1]=9.38 p=0.00
    Girls69.1%53.3%46.8%56.2%χ2[1]=39.16 p=0.00χ2[1]=3.90 p=0.05
Mother's occupation able to be coded
    Boys58.8%53.8%39.5%50.2%χ2[1]=15.47 p=0.00
    Girls66.0%59.5%47.8%57.9%χ2[1]=26.37 p=0.00χ2[1]=9.40 p=0.00
Parents' college attendance completed
    Boys82.9%69.4%70.2%74.5%χ2[1]=8.50 p=0.00
    Girls85.8%73.4%67.2%75.3%χ2[1]=36.44 p=0.00χ2[1]=0.15 p=0.37
Postcode completed
    Boys94.5%88.8%70.2%83.5%χ2[1]=45.18 p=0.00
    Girls99.0%91.0%83.7%91.2%χ2[1]=56.47 p=0.00χ2[1]=23.28 p=0.00
Housing tenure completed
    Boys95.0%89.4%89.8%91.5%χ2[1]=3.49 p=0.06
    Girls94.6%93.4%88.0%92.1%χ2[1]=11.48 p=0.00χ2[1]=0.17 p=0.37
Car ownership completed
    Boys98.5%93.8%98.6%97.2%χ2[1]=0.02 p=0.89
    Girls99.5%99.4%99.5%99.4%χ2[1]=0.00 p=0.99χ2[1]=15.56 p=0.00
Free school meals completed
    Boys98.0%92.5%98.1%96.5%χ2[1]=0.02 p=0.88
    Girls97.2%98.9%99.0%98.4%χ2[1]=4.07 p=0.04χ2[1]=6.42 p=0.01
Computer ownership completed
    Boys99.0%93.1%98.6%97.2%χ2[1]=0.03 p=0.87
    Girls99.5%99.6%99.5%99.5%χ2[1]=0.00 p=0.99χ2[1]=17.45 p=0.00