TABLE 9.

Control analyses showing effects of general intelligence

	WJ GIA
LEC, # negative events	−0.89*
HOME-SF cognitive enrichment	4.20**
HOME-SF routine	1.40
HOME-SF parental closeness	−2.23*
HOME-SF restrictive parenting	−0.36
HOME-SF parental monitoring	0.62
HOME-SF supportive parenting	1.44
Response task—Updating cost	0.95
Response task—Maintenance cost	0.80
Feature task—Updating cost	2.00
Feature task—Maintenance cost	−0.61
Dimension task—Updating cost	4.16
Dimension task—Maintenance cost	1.57

Notes. GIA: General Intelligence Ability; HOME-SF: Home Observation for Measurement of the Environment-Short Form; LEC: Life Events Checklist.

Cells represent beta coefficients predicting task reaction time in regression models with 5,000 bootstrap replications, controlling for age of child. Missing data accounted for with maximum-likelihood maximum variation.

Woodcock–Johnson GIA values are standardized scores.

^*p < 0.05;

^**p < 0.01;

^***p < 0.001.