id: 06530229
dt: j
an: 2016a.00498
au: Lee, Hee Seung; DeWolf, Melissa; Bassok, Miriam; Holyoak, Keith J.
ti: Conceptual and procedural distinctions between fractions and decimals: a
cross-national comparison.
so: Cognition 147, 57-69 (2016).
py: 2016
pu: Elsevier, Amsterdam
la: EN
cc: F40 C30
ut: cross-national comparison; magnitude; semantic alignment; continuous and
discrete quantities; fractions; decimals
ci:
li: doi:10.1016/j.cognition.2015.11.005
ab: Summary: Previous work has shown that adults in the United States process
fractions and decimals in distinctly different ways, both in tasks
requiring magnitude judgments and in tasks requiring mathematical
reasoning. In particular, fractions and decimals are preferentially
used to model discrete and continuous entities, respectively. The
current study tested whether similar alignments between the format of
rational numbers and quantitative ontology hold for Korean college
students, who differ from American students in educational background,
overall mathematical proficiency, language, and measurement
conventions. A textbook analysis and the results of five experiments
revealed that the alignments found in the United States were replicated
in South Korea. The present study provides strong evidence for the
existence of a natural alignment between entity type and the format of
rational numbers. This alignment, and other processing differences
between fractions and decimals, cannot be attributed to the specifics
of education, language, and measurement units, which differ greatly
between the United States and South Korea.
rv: