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Title: The multidimensionality of Japanese kanji abilities
Authors: Otsuka, Sadao  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0001-6282-840X (unconfirmed)
Murai, Toshiya
Author's alias: 大塚, 貞男
村井, 俊哉
Keywords: Cognitive ageing
Human behaviour
Issue Date: 20-Feb-2020
Publisher: Springer Nature
Journal title: Scientific Reports
Volume: 10
Thesis number: 3039
Abstract: The aim of this study was to identify the cognitive structures of kanji abilities in the Japanese general population and to examine age and cohort effects on them. From a large database of the most popular kanji exam in Japan, we analyzed high school graduation level data of 33, 659 people in 2006 and 16, 971 people in 2016. Confirmatory factor analyses validated the three-dimensional model of kanji abilities, including factors of reading, writing and semantic comprehension. Furthermore, the age effect on writing, and correlations between writing and semantic dimensions, were different between 2006 and 2016, suggesting reduced writing ability and stagnation in integrated mastery of kanji orthography and semantics in current-day Japanese adults. These findings provide the first evidence of the multidimensional nature of Japanese kanji abilities, and age/cohort differences in that dimensional structure. The importance of the habit of handwriting for literacy acquisition is discussed.
Rights: © The Author(s) 2020. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
URI: http://hdl.handle.net/2433/250083
DOI(Published Version): 10.1038/s41598-020-59852-0
PubMed ID: 32080257
Appears in Collections:Journal Articles

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