Assessing youth psychopathology involves collecting multiple informants' reports. Yet, multi-informant reports often disagree, necessitating integrative strategies that optimize predictive power. The "Trait" score approach leverages principal components analysis (PCA) to account for the context and perspective from which informants…

Demographic and clinical factors may influence assessment of autism symptoms. This study evaluated these correlates and also examined whether social communication and interaction and restricted/repetitive behavior provided unique prediction of autism spectrum disorder diagnosis. We analyzed data from 7352 siblings included in the Interactive…