TABLE 3.

Knowledge and Demographic Variables

VariableValuenChild Restraint Knowledge (7 Items)Airbag Knowledge (13 Items)
Mean ScoreP (1-Way ANOVA)P (4-Way ANOVA)Mean ScoreP (1-Way ANOVA)P (4-Way ANOVA)
Overall mean(4.7)(8.3)
How well do you speak English?Very well4375.1<.001<.0019.3<.001<.001
Well1014.47.6
Not so well414.36.7
Poorly763.74.6
Income<Poverty level1804.4<.001.086.9<.001<.001
1–2 × poverty level2724.68.4
>2 × poverty level1845.39.6
Missing19
EthnicityHispanic3904.4<.001.017.5<.001.03
Non-Hispanic1665.49.7
White
Other or missing99
Years of school1–112404.4<.001.537.0<.0010.39
121654.78.8
13–151485.19.2
≥16725.39.5
Missing30
  • ANOVA indicates analysis of variance.

    Cases with any other or missing values excluded from ANOVA.

    Multiple ANOVA used 515 cases (140 were excluded).