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Psyridou, Maria; Torppa, Minna; Tolvanen, Asko; Poikkeus, Anna-Maija; Lerkkanen, Marja-Kristiina; Koponen, Tuire – Developmental Psychology, 2023
The aim of the present study was to examine the kinds of developmental profiles of arithmetic fluency skills that can be identified across Grades 1-9 (ages 7-16) in a large Finnish sample (n = 2,518). The study also examined whether membership in the developmental profiles could be predicted using a comprehensive set of kindergarten-age factors,…
Descriptors: Profiles, Arithmetic, Mathematics Skills, Elementary School Students
Manu, Mari; Torppa, Minna; Vasalampi, Kati; Lerkkanen, Marja-Kristiina; Poikkeus, Anna-Maija; Niemi, Pekka – Reading Research Quarterly, 2023
The gender difference in reading achievement in favor of adolescent girls is a robust finding in the literature, but the evidence is mixed when considering younger children. The present study followed the development of reading skills among Finnish children (N = 1867) from kindergarten age (6 years) to 18 years of age to determine the onset of…
Descriptors: Student Development, Elementary Secondary Education, Sex Role, Parent Background