“…Teacher and peer reports show higher stability (e.g., r range = .5 to .7; Fox & Boulton, 2006;Hanish et al, 2004) than self-reports (e.g., r range = .2 to .4; Dhami, Hoglund, Leadbeater, & Boone, 2005;Fox & Boulton, 2006;Kochenderfer & Ladd, 1996). Generally, victimization is somewhat transient among younger children (e.g., Buhs, Ladd, & Herald, 2006;Ladd & Kochenderfer-Ladd, 2002), but becomes moderately stable for middle elementary students, over both short intervals (4 to 5 months, Goodman, Stormshak, & Dishion, 2001;Ostrov, 2008) and across 1 or 2 years (Bellmore & Cillessen, 2006;Ladd & KochenderferLadd, 2002;Salmivalli, Lappalainen, & Lagerspetz, 1998;Yeung & Leadbeater, 2010), with 40% to 50% of students reporting consistent victimization (Beran, 2008;Smith, Talamelli, Cowie, Naylor, & Chauhan, 2004).…”