The Oppositional Defiant Disorder Rating Scale (ODDRS; Hommersen et al., 2006) is a brief measure specific to the 8 symptoms of oppositional defiant disorder (ODD). This parent-report measure asks parents to indicate the extent to which each of the symptoms is descriptive of their child. The response format is a 4-point rating scale (0 = not at all, 1 = just a little, 2 = pretty much, 3 = very much). The ODDRS contains the 8 symptoms of ODD taken word for word from the Diagnostic and Statistical Manual of Mental Disorders-Fourth Edition-Text Revision (DSM-IV-TR). The ODDRS was completed by mothers and fathers of children who had ADHD and children who did not have behavior problems. Based on the authors' psychometric analyses, the ODDRS had high internal consistency, high interrater reliability, and moderate 1-year test-retest reliability. The scale had 1 principal component and correlated as expected with related subscales from the Child Behavior Checklist (CBCL; Achenbach, 1991) and with overreactive parenting. (PsycTESTS Database Record (c) 2019 APA, all rights reserved)