Title: Strategic aspects of numerosity judgment: the effect of task characteristics
Authors: Luwel, Koen ×
Verschaffel, Lieven
Onghena, Patrick
De Corte, Erik #
Issue Date: 2003
Series Title: Experimental Psychology vol:50 pages:63-75
Abstract: In previous investigations we documented that people use several strategies to determine different numerosities of
blocks that are presented in a square grid. One of these strategies is the clever subtraction strategy,wherein the number of empty squares in the grid is subtracted from the total number of squares in the grid. In the present study we investigated participants’ flexibility in strategy use when varying the shape of the grid. Analysis of the results in terms of the theoretical framework of Lemaire and Siegler (1995) regarding strategic change shows that this contextual variable affected the frequency, execution
time, and accuracy of subjects’ use of the subtraction strategy. The usefulness of this framework for analyzing the nature of the adaptation to contextual variations is discussed. From a methodological point of view, this study documents the potential of Beem’s (1993, 1999) segmented linear regression models for assessing subjects’ strategy use in cognitive tasks.
Description: Afdeling Didactiek. Departement Pedagogische wetenschappen. Centrum voor Instructiepsychologie en -technologie. Leuvens Instituut voor onderwijsonderzoek (LIVO) Afdeling Fundamentele en comparatieve pedagogiek en methodologie. Centrum voor Methodologie van het pedagogisch onderzoek.
ISSN: 1618-3169
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Methodology of Educational Sciences
Leuven Institute for Educational Research (-)
Education and Training
Instructional Psychology and Technology
Research Centre for Educational Research & Development, Campus Brussels (-)
Faculty of Economics and Business (FEB) - miscellaneous
× corresponding author
# (joint) last author

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