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| Gudbjornsdottir, Gudny | 1 |
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Gudbjornsdottir, Gudny – 1989
The role of content in formal operations tasks was explored in research that systematically varied the content of tasks and children's performance by developmental level and socioeconomic status (SES). Subjects were 110 Icelandic 12-year-olds who had entered a longitudinal study when they were 7 years old. Two extreme ability groups of children…
Descriptors: Cognitive Ability, Elementary Education, Elementary School Students, Foreign Countries
