... A final person-centered approach that has been increasingly used is latent class analysis (LCA; Goodman, 1974; Lazarsfeld & Henry 1968). LCA has been used with a variety of constructs, including child temperament (Stern, Arcus, Kagan, Rubin, & Snidman, 1995), problem behavior (Lanza, Collins, Schafer, & Flaherty, 2005), depression (Lanza, Flaherty, & Collins, 2003; Sullivan, Kessler, & Kendler, 1998), and substance use (Chung, Park, & Lanza, 2005; Guo, Collins, Hill, & Hawkins, 2000; Lanza & Collins, 2002). More recently, LCA has been used to identify profiles of early risk associated with behavior and academic outcomes (Lanza, Rhoades, Nix, Greenberg, & CPPRG, in press). ...