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Cahan, Sorel; Greenbaum, Charles; Artman, Lavee; Deluya, Nilly; Gappel-Gilon, Yael – Cognitive Development, 2008
Using the ''between-grade levels'' regression discontinuity design, this study examined the hypothesized differential sensitivity of logico-mathematical (LM) and infralogical (IL) operational tasks to the effects of chronological age and first grade schooling in a sample of 580 1st and 2nd grade Israeli children. The results indicate that the…
Descriptors: Age, Grade 2, Grade 1, Foreign Countries