“…Social housing will attenuate stress' effects on biological and psychological measures. This hypothesis is based on research demonstrating that social housing decreases the stress response in rodents (Brown & Grunberg, 1995;Detillion et al, 2004;DeVries et al, 2003DeVries et al, , 2007Ditzen et al, 2007;Glasper & DeVries, 2005;Heinrichs et al, 2003;Hennessy et al, 2009;Plante et al, 2007;Thorsteinsson & James, 1999) and in humans (Kulik, Mahler, & Moore, 1996;Lepore, 1992).…”