I. Briefly describe the aim/goals of the project. What question(s) will this study help to answer? [One paragraph]
Oppositional defiant disorder (ODD) is a common childhood disorder. A common assumption is that ODD represents a dimension of behavior that is at least stable across time if not stable across settings (e.g., home, school, and community, American Psychiatric Association, 2013). Single source latent-state trait (LST) models allow one to determine the amount of stable trait variance and occasion specific variance in a dimension of behavior for an individual source (e.g., mothers, fathers, teachers, and aides’ ratings of ODD). Multiple source LST models allow one to determine the consistency (convergent validity) of the stable trait and occasion-specific variance components across mothers, fathers, teachers, and aides (convergent validity within and across setting for these two variance components). The study will investigate these two questions: (1) the amount of stable trait variance and occasion specific variance in ODD and academic impairment (AI) for mothers, fathers, teachers, and aides; and (2) the consistency (convergent validity) of the stable trait variance and the occasion-specific variance in ODD and AI across mothers, fathers, teachers, and aides (i.e., how much of the stable trait variance and …show more content…
The second hypothesis is that while the ODD trait variance for fathers will show consistency (convergent validity) with the ODD trait variance for mothers, the ODD trait variance for teachers and aides will show no consistency with the ODD trait variance for mothers. In contrast, the AI trait variance for fathers, teachers, and aides will show high consistency (convergent validity) with the AI trait variance for mothers. This pattern of results would suggest that ODD is setting specific (i.e., there is no cross setting (home to school) consistency for the ODD trait variance while there was cross setting consistency for the AI trait
Oppositional defiant disorder (ODD) is a common childhood disorder. A common assumption is that ODD represents a dimension of behavior that is at least stable across time if not stable across settings (e.g., home, school, and community, American Psychiatric Association, 2013). Single source latent-state trait (LST) models allow one to determine the amount of stable trait variance and occasion specific variance in a dimension of behavior for an individual source (e.g., mothers, fathers, teachers, and aides’ ratings of ODD). Multiple source LST models allow one to determine the consistency (convergent validity) of the stable trait and occasion-specific variance components across mothers, fathers, teachers, and aides (convergent validity within and across setting for these two variance components). The study will investigate these two questions: (1) the amount of stable trait variance and occasion specific variance in ODD and academic impairment (AI) for mothers, fathers, teachers, and aides; and (2) the consistency (convergent validity) of the stable trait variance and the occasion-specific variance in ODD and AI across mothers, fathers, teachers, and aides (i.e., how much of the stable trait variance and …show more content…
The second hypothesis is that while the ODD trait variance for fathers will show consistency (convergent validity) with the ODD trait variance for mothers, the ODD trait variance for teachers and aides will show no consistency with the ODD trait variance for mothers. In contrast, the AI trait variance for fathers, teachers, and aides will show high consistency (convergent validity) with the AI trait variance for mothers. This pattern of results would suggest that ODD is setting specific (i.e., there is no cross setting (home to school) consistency for the ODD trait variance while there was cross setting consistency for the AI trait