Transcoding counts: Longitudinal contribution of number writing to arithmetic in different languages

Chiara Banfi, Francina J Clayton, Anna F Steiner, Sabrina Finke, Ferenc Kemény, Karin Landerl, Silke M Göbel

Research output: Contribution to journalArticlepeer-review

Abstract

Number writing involves transcoding from number words (e.g., "thirty-two") to written digit strings (32) and is an important unique predictor of arithmetic. The existing longitudinal evidence about the relation between transcoding and arithmetic is mostly language specific. In languages with number word inversion (e.g., German), the order of tens and units is transposed in spoken number words compared with Arabic numbers. This makes transcoding more challenging than in languages without number word inversion (e.g., English). In the current study, we aimed to understand whether the contribution of number writing to the development of arithmetic is similar in languages with and without number word inversion. German-speaking children (n = 166) and English-speaking children (n = 201) were followed over the first 3 years of primary school. In a series of multiple linear regressions, we tested whether number writing of multi-digit numbers was a significant unique predictor of arithmetic after controlling for well-known non-numerical predictors (nonverbal reasoning and working memory) and numerical predictors (symbolic and nonsymbolic magnitude comparison). Number writing in Grade 1 predicted arithmetic in Grades 1, 2, and 3 over and above the other predictors. Crucially, number writing performance was of comparable importance for arithmetic development in German- and English-speaking children. Our findings extend previous evidence by showing that transcoding predicts the development of arithmetic skills during the first 3 years of primary school in languages with and without number word inversion.

Original languageEnglish
Article number105482
Number of pages18
JournalJournal of Experimental Child Psychology
Volume223
Early online date1 Jul 2022
DOIs
Publication statusE-pub ahead of print - 1 Jul 2022

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