“…Research has found associations between maternal relationship instability (movements in or out of marriage or cohabitation) and young children’s behavior problems in both low-income and economically diverse samples of families (Ackerman, Brown, D’Ermo, & Izard, 2002; Ackerman, Kogos, Youngstrom, Schoff, & Izard, 1999; Cavanagh & Huston, 2006; Fomby & Cherlin, 2007; Magnuson & Berger 2009; Osborne & McLanahan 2007), with some evidence of links to emotional problems as well, as found in research with older children from the same sample as the current study (Bachman, Coley, & Carrano, 2011). Work on residential instability has delineated associations with worse physical health outcomes (Busaker & Kasehagen, 2012; Cutts et al, 2011; Kamp Dush, Schmeer, & Taylor, 2013) as well as heightened emotional and behavioral problems among young children, as found in research with older children from the current study as well as other datasets (Coley et al, 2013; Ziol-Guest & McKenna, 2013). As with environmental disorder, evidence suggests that aspects of environmental instability are correlated within families (Kull, Coley, & Lynch, 2013).…”