To examine the role of human capital factors in explaining covariation between credit scores and heart age, we used the same SEM framework we used for adverse shocks and for income, only this time substituting human capital factors (Fig. 3). (pnas.org)
Sources of covariation among attention - deficit / hyperactivity disorder, oppositional defiant disorder, and conduct disorder: The important of shared environment (cambridge.org)
The taming of the neural crest: a developmental perspective on the origins of morphological covariation in domesticated mammals. (sciencenews.org)