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Caviola, Sara; Colling, Lincoln J.; Mammarella, Irene C.; Szucs, Dénes – Developmental Science, 2020
We determined the relative importance of the so-called approximate number system (ANS), symbolic number comparison (SNC) and verbal and spatial short-term and working memory (WM) capacity for mathematics achievement in 1,254 Grade 2, 4 and 6 children. The large sample size assured high power and low false report probability and allowed us to…
Descriptors: Elementary School Students, Number Systems, Short Term Memory, Mathematics Achievement
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Chung, Kevin Kien Hoa; Lo, Jason C. M.; McBride, Catherine – Annals of Dyslexia, 2018
Dyslexia is a developmental disability affecting the acquisition of reading and writing skills, and its developmental nature makes longitudinal research of great importance. This study therefore investigated the cognitive-linguistic profiles of the typical-functioning dyslexics and high-functioning dyslexics with longitudinal cohorts of…
Descriptors: Dyslexia, Longitudinal Studies, Identification, Chinese
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Koerber, Susanne; Mayer, Daniela; Osterhaus, Christopher; Schwippert, Knut; Sodian, Beate – Child Development, 2015
The development of scientific thinking was assessed in 1,581 second, third, and fourth graders (8-, 9-, 10-year-olds) based on a conceptual model that posits developmental progression from naïve to more advanced conceptions. Using a 66-item scale, five components of scientific thinking were addressed, including experimental design, data…
Descriptors: Elementary School Students, Thinking Skills, Parent Background, Educational Attainment
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Pacheco, Andreia; Reis, Alexandra; Araújo, Susana; Inácio, Filomena; Petersson, Karl Magnus; Faísca, Luís – Reading and Writing: An Interdisciplinary Journal, 2014
Recent studies have emphasized that developmental dyslexia is a multiple-deficit disorder, in contrast to the traditional single-deficit view. In this context, cognitive profiling of children with dyslexia may be a relevant contribution to this unresolved discussion. The aim of this study was to profile 36 Portuguese children with dyslexia from…
Descriptors: Foreign Countries, Dyslexia, Children, Grade 2
Squires, Katie Ellen – ProQuest LLC, 2013
This study investigated the differential contribution of auditory-verbal and visuospatial working memory (WM) on decoding skills in second- and fifth-grade children identified with poor decoding. Thirty-two second-grade students and 22 fifth-grade students completed measures that assessed simple and complex auditory-verbal and visuospatial memory,…
Descriptors: Memory, Short Term Memory, Visual Perception, Spatial Ability
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Linnea C. Ehri; Julie Rosenthal – Journal of Literacy Research, 2007
Vocabulary learning is central to reading ability and academic achievement. Vocabulary researchers and educators have viewed its essence as a process of associating the pronunciations and meanings of words in memory, and they have paid little attention to the contribution that spellings might make to vocabulary learning. We review theory and…
Descriptors: Spelling Instruction, Vocabulary Development, Grade 2, Urban Schools