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Direct linkAnsari, Arya; Pianta, Robert C.; Whittaker, Jessica V.; Vitiello, Virginia E.; Ruzek, Erik A. – Developmental Psychology, 2020
The present investigation examined the benefits of pre-K through the end of kindergarten for children from low-income homes who lived in a large and diverse county (n = 2,581) as well as factors associated with a reduction in benefits during the kindergarten year. Results revealed that pre-K graduates outperformed nonattenders in the areas of…
Descriptors: Preschool Education, Program Effectiveness, Low Income Students, Kindergarten
Reigosa-Crespo, Vivian; Valdes-Sosa, Mitchell; Butterworth, Brian; Estevez, Nancy; Rodriguez, Marisol; Santos, Elsa; Torres, Paul; Suarez, Ramon; Lage, Agustin – Developmental Psychology, 2012
The association of enumeration and number comparison capacities with arithmetical competence was examined in a large sample of children from 2nd to 9th grades. It was found that efficiency on numerical capacities predicted separately more than 25% of the variance in the individual differences on a timed arithmetical test, and this occurred for…
Descriptors: Incidence, Achievement Tests, Gender Differences, Children
Siegler, Robert S.; Pyke, Aryn A. – Developmental Psychology, 2013
We examined developmental and individual differences in 6th and 8th graders' fraction arithmetic and overall mathematics achievement and related them to differences in understanding of fraction magnitudes, whole number division, executive functioning, and metacognitive judgments within a cross-sectional design. Results indicated that the…
Descriptors: Grade 6, Arithmetic, Mathematics Skills, Mathematics Instruction
Booth, Julie L.; Siegler, Robert S. – Developmental Psychology, 2006
The authors examined developmental and individual differences in pure numerical estimation, the type of estimation that depends solely on knowledge of numbers. Children between kindergarten and 4th grade were asked to solve 4 types of numerical estimation problems: computational, numerosity, measurement, and number line. In Experiment 1,…
Descriptors: Individual Differences, Individual Development, Numbers, Computation
