approached significancep < .10
Covariates that were significant or approached significance ( p < .10) and that improved the fit of the model were retained in order to control for variables related to outcomes, while providing a parsimonious representation of findings ( Singer & Willett, 2003 ): Household income (sum of mothers’ and partners’ salaries) and child sex (coded as 1 = male and 0 = female).