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Modeling a cascade of effects: the role of speed and executive functioning in preterm/full‐term differences in academic achievement
Author(s) -
Rose Susan A.,
Feldman Judith F.,
Jankowski Jeffery J.
Publication year - 2011
Publication title -
developmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.801
H-Index - 127
eISSN - 1467-7687
pISSN - 1363-755X
DOI - 10.1111/j.1467-7687.2011.01068.x
Subject(s) - psychology , executive functions , working memory , developmental psychology , short term memory , structural equation modeling , confirmatory factor analysis , reading (process) , academic achievement , cognitive psychology , cognition , neuroscience , statistics , mathematics , political science , law
This study identified deficits in executive functioning in pre‐adolescent preterms and modeled their role, along with processing speed, in explaining preterm/full‐term differences in reading and mathematics. Preterms (< 1750 g) showed deficits at 11 years on a battery of tasks tapping the three basic executive functions identified by Miyake – updating/working memory, inhibition, and shifting. Confirmatory factor analysis showed that these executive functions, though correlated, were distinct from one another and from processing speed, which later proved to account for much of the intercorrelation among executive functions. In the best‐fitting structural equation model, the negative effects of prematurity on achievement were completely mediated by the three executive functions and speed in a cascade of effects: prematurity → slower processing speed → poorer executive functioning (working memory) → lower achievement in math and reading.