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Direct linkKoponen, Tuire; Eklund, Kenneth; Heikkilä, Riikka; Salminen, Jonna; Fuchs, Lynn; Fuchs, Douglas; Aro, Mikko – Child Development, 2020
This study examines the core predictors of the covariance in reading and arithmetic fluency and the domain-general cognitive skills that explain the core predictors and covariance. Seven-year-old Finnish children (N = 200) were assessed on rapid automatized naming (RAN), phonological awareness, letter knowledge, verbal counting, number writing,…
Descriptors: Foreign Countries, Elementary School Students, Grade 2, Reading Fluency
Thompson, Clarissa A.; Opfer, John E. – Child Development, 2010
How does understanding the decimal system change with age and experience? Second, third, sixth graders, and adults (Experiment 1: N = 96, mean ages = 7.9, 9.23, 12.06, and 19.96 years, respectively) made number line estimates across 3 scales (0-1,000, 0-10,000, and 0-100,000). Generation of linear estimates increased with age but decreased with…
Descriptors: Experimental Groups, Grade 6, Grade 2, Age Differences
