Volume 2018, Issue 162 pp. 67-87
Review

The Effect of Peer-Group Argumentative Dialogue on Delayed Gains in Scientific Content Knowledge

Antonia Larrain

Antonia Larrain

Universidad Alberto Hurtado

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Paulina Freire

Paulina Freire

Universidad Alberto Hurtado

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Valeska Grau

Valeska Grau

Pontificia Universidad Católica de Chile

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Patricia López

Patricia López

Universidad Alberto Hurtado

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Ignacia Salvat

Ignacia Salvat

Universidad Alberto Hurtado

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Maximiliano Silva

Maximiliano Silva

Universidad Alberto Hurtado

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Vicente Gastellu

Vicente Gastellu

Universidad Alberto Hurtado

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First published: 29 October 2018
Citations: 13

This work was supported by Fondo de Desarrollo Científico y Tecnológico de Chile (FONDECYT), under Grant nos. 1140995, 1170431, and 11130500.

Abstract

Experimental evidence has shown the effect of peer-group argumentation on scientific concept development. However, questions regarding how and why it happens remain. The aim of this study is to contribute, with experimental evidence gathered in naturalistic settings (classrooms), to the understanding of the relationship between peer-group argumentation and content knowledge learning, exploring the role that individual argumentative skills play. In total, sixty-one fourth-grade students (aged 9–10 years) participated in the study (thirty-nine female). One teacher was invited to teach a thematic unit (Forces), with lesson plans especially developed to foster argumentation in the classroom. The second teacher taught as usual. Students’ conceptual understanding and argumentative skills were evaluated individually, both before and after the lessons. Although there were no differences in the immediate post-test scores between groups (after controlling for pre-test), the intervention group showed significantly higher scores in delayed post-tests. Regression analyses showed that the ratio of argumentative utterances per minute of group work predicted students’ scores in delayed post-test disciplinary content knowledge after controlling for initial levels of learning. Argumentation skill gains did not impact learning, but initial levels of argumentation skills predicted delayed scientific content knowledge post-test.

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