Co-developmental Trajectories of Defiant/Headstrong, Irritability, and Prosocial Emotions from Preschool Age to Early Adolescence

Abstract

This study ascertains how the proposed subtypes and specifiers of oppositional defiant disorder (ODD) based on irritability and prosocial emotions co-develop and describes the clinical characteristics of the resultant classes. A sample of 488 community children was followed up from ages 3 to 12 years and assessed with categorical and dimensional measures answered by parents and teachers. Latent class growth analysis for three parallel processes [defiant/headstrong, irritability, and limited prosocial emotions (LPE)] identified a 4-class model with adequate entropy (.912) and posterior probabilities of class membership (≥ .921). Class 1 (n = 38, 7.9%) was made up of children with defiant/headstrong with chronic irritability and LPE. Class 2 (n = 128, 26.3%) was comprised of children with defiant/headstrong with chronic irritability and typical prosocial emotions. Class 3 (n = 101, 20.7%) clustered children with LPE without defiant/headstrong and without irritability. Class 4 (n = 220, 45.1%) included children with the lowest scores in all the processes. The classes were distinguishable and showed different clinical characteristics through development. These findings support the validity of ICD-11 ODD subtypes based on chronic irritability and may help to guide clinicians' decision-making regarding treating oppositionality in children.

Keywords: Defiant/headstrong; Developmental trajectories; Irritability; Limited prosocial emotions; Oppositional defiant; Subtypes.