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Abstract:
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The Adolescent Brain and Cognitive Development (ABCD) study follows 11,869 children ages 9-10 using biannual brain imaging data and annual multi-informant survey data about children's risk and protective behaviors. This study will assess parent-child agreement on ~100 baseline survey items using polychoric correlation (PCC), an agreement measure that corrects for possible parent-child differences in response threshholds for an underlying latent variable. Our initial analysis found low agreement for depression (PCC=0.22), chance agreement for sexual orientation (PCC=0.08), and high agreement for past year suspension/detention (PCC=0.76). Even high-agreement items produce different prevalence estimates for parent vs. child report (McNemar p< 0.0001); in fact, we have 4 estimates of past year suspension/detention: parent report (5.4%), child report (9.1%), parent and child both report (3.3%), either parent or child report (11.1%). This study will identify low-agreement topics, explore implications of parent-child agreement for longitudinal outcome studies and for identifying brain imaging results associated with each construct without false significance due to multiple comparisons.
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