Improving learning performance with extra-credit optional homework

INTRODUCTION. Assignments are often used at college level to reinforce learning, offer practice opportunities, and encourage self-assessment. While research indicates their positive impact on student performance, their effectiveness remains controversial and some studies suggest that extrinsic ince...

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Main Authors: Juan Equiza-Goñi, Isabel Rodríguez-Tejedo
Format: Article
Language:Catalan
Published: Universitat de Barcelona 2025-07-01
Series:Revista d'Innovació i Recerca en Educació
Subjects:
Online Access:https://revistes.ub.edu/index.php/REIRE/article/view/46352
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author Juan Equiza-Goñi
Isabel Rodríguez-Tejedo
author_facet Juan Equiza-Goñi
Isabel Rodríguez-Tejedo
author_sort Juan Equiza-Goñi
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description INTRODUCTION. Assignments are often used at college level to reinforce learning, offer practice opportunities, and encourage self-assessment. While research indicates their positive impact on student performance, their effectiveness remains controversial and some studies suggest that extrinsic incentives like extra credit may undermine intrinsic motivation. Our study contributes to this debate by examining the effects of optional extra-credit assignments on student performance on two Economics courses. METHOD. We designed extra-credit assignments with features shown to increase intrinsic motivation. The timing of these assignments allowed us to alleviate the potential challenge of endogeneity. We used hierarchical regression analysis to investigate the impact of the extra-credit assignment on students’ final evaluations. RESULTS. We found significant effects of extra-credit homework on students’ learning outcomes, measured by their performance in the final course exam. DISCUSSION. By drawing upon insights from the literature on intrinsic motivation, the activities were designed to foster peer learning and allow students to exercise some creativity and pursue their personal interests. Our analysis provides evidence that students who undertook the extra-credit work improved their performance in the final evaluation. This result is statistically significant, even after accounting for their prior knowledge and course engagement.
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spelling doaj-art-2bd5af41de254befac1bfa095b79b44b2025-08-20T02:37:02ZcatUniversitat de BarcelonaRevista d'Innovació i Recerca en Educació2013-22552025-07-0118210.1344/reire.46352Improving learning performance with extra-credit optional homeworkJuan Equiza-Goñi0Isabel Rodríguez-Tejedo1Universidad de NavarraUniversidad de Navarra INTRODUCTION. Assignments are often used at college level to reinforce learning, offer practice opportunities, and encourage self-assessment. While research indicates their positive impact on student performance, their effectiveness remains controversial and some studies suggest that extrinsic incentives like extra credit may undermine intrinsic motivation. Our study contributes to this debate by examining the effects of optional extra-credit assignments on student performance on two Economics courses. METHOD. We designed extra-credit assignments with features shown to increase intrinsic motivation. The timing of these assignments allowed us to alleviate the potential challenge of endogeneity. We used hierarchical regression analysis to investigate the impact of the extra-credit assignment on students’ final evaluations. RESULTS. We found significant effects of extra-credit homework on students’ learning outcomes, measured by their performance in the final course exam. DISCUSSION. By drawing upon insights from the literature on intrinsic motivation, the activities were designed to foster peer learning and allow students to exercise some creativity and pursue their personal interests. Our analysis provides evidence that students who undertook the extra-credit work improved their performance in the final evaluation. This result is statistically significant, even after accounting for their prior knowledge and course engagement. https://revistes.ub.edu/index.php/REIRE/article/view/46352extra creditlearningcollege studentsoptional homeworkbehavior incentiveevaluation
spellingShingle Juan Equiza-Goñi
Isabel Rodríguez-Tejedo
Improving learning performance with extra-credit optional homework
Revista d'Innovació i Recerca en Educació
extra credit
learning
college students
optional homework
behavior incentive
evaluation
title Improving learning performance with extra-credit optional homework
title_full Improving learning performance with extra-credit optional homework
title_fullStr Improving learning performance with extra-credit optional homework
title_full_unstemmed Improving learning performance with extra-credit optional homework
title_short Improving learning performance with extra-credit optional homework
title_sort improving learning performance with extra credit optional homework
topic extra credit
learning
college students
optional homework
behavior incentive
evaluation
url https://revistes.ub.edu/index.php/REIRE/article/view/46352
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