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Willoughby, Michael T.; Blair, Clancy B. – Grantee Submission, 2016
This study tested whether individual executive function (EF) tasks were better characterized as formative or reflective indicators of the latent construct of EF. EF data that were collected as part of the Family Life Project (FLP), a prospective longitudinal study of families who were recruited at the birth of a new child (N = 1,292), when…
Descriptors: Preschool Children, Kindergarten, Executive Function, Formative Evaluation
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Willoughby, Michael T.; Wirth, R. J.; Blair, Clancy B. – Psychological Assessment, 2012
This study tested the longitudinal measurement invariance and developmental changes of a newly developed battery of executive function (EF) tasks for use in early childhood. The battery was administered in the Family Life Project--a prospective longitudinal study (N = 1,292) of families who were oversampled from low-income and African American…
Descriptors: Executive Function, Young Children, Child Development, Measures (Individuals)
Willoughby, Michael T.; Magnus, Brooke; Vernon-Feagans, Lynne; Blair, Clancy B. – Journal of Learning Disabilities, 2017
Substantial evidence has established that individual differences in executive function (EF) in early childhood are uniquely predictive of children's academic readiness at school entry. The current study tested whether growth trajectories of EF across the early childhood period could be used to identify a subset of children who were at pronounced…
Descriptors: Executive Function, Young Children, Kindergarten, School Readiness