Background: The present study aimed to examine the early growth of word and nonword reading fluency and their cognitive predictors in a consistent syllabic orthography (Japanese "Hiragana"). Method: One hundred sixty-nine Grade 1 Japanese children (M[subscript age] = 80.12 months, SD = 3.62) were followed until the middle of Grade 2 and…

We examined the role of different cognitive skills in word reading (accuracy and fluency) and spelling accuracy in syllabic Hiragana and morphographic Kanji. Japanese Hiragana and Kanji are strikingly contrastive orthographies: Hiragana has consistent character-sound correspondences with a limited symbol set, whereas Kanji has inconsistent…

In this paper, we estimate the effect of pupil's relative age within the first grade of primary school on mathematics and reading test scores at age 15. The main objective is to evaluate the long-term causal effect of relative age in the first grades of primary school on pupil's test in 16 different countries. We use the national rule for…