This study tested the longitudinal measurement invariance and developmental changes of a newly developed battery of executive function (EF) tasks for use in early childhood. The battery was administered in the Family Life Project--a prospective longitudinal study (N = 1,292) of families who were oversampled from low-income and African American…

As the number of people choosing to marry has plunged during recent decades, the tally of children living with one parent and having limited or no contact with the other has soared. Attuned to the hazards that such separations impose upon children but also upon parents who, studies show, fare physically and emotionally better in a thriving…