This study examined social information processing (SIP) in peer-victimized children in ways that considered issues of measurement in what constitutes being a victim. A sample of 107 2nd and 3rd grade students completed self- and peer-reports of victimization and aggression, as well as a measure of SIP. The results indicated that self- and peer- reports of victimization were not significantly correlated. There was a modest but significant positive relationship between victimization and aggression, both within and across informants. Findings about the relationship between victimization and SIP were complicated by overlaps between victimization and aggression, lack of correlations across perspectives, and small sample size. Hostile intent attributions were modestly positively correlated to self-reported victimization, but not to peer-reported victimization. The results suggest that the relationship between victimization and SIP depends on how victimization is measured. Implications of these findings for future research are discussed.