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Sandwich feedback: The empirical evidence of its effectiveness
Jakub Prochazkaa,b*, Martin Ovcaria and Michal Durinika,c
aDepartment of Corporate Economy, Masaryk University, Brno, Czech Republic;
bDepartment of Psychology, Masaryk University, Brno, Czech Republic; cMacquarie
Graduate School of Management, Sydney, Australia
*Corresponding author. Department of Corporate Economy, Faculty of Economics and
Administration, Masaryk University, Lipova 41a, 602 00 Brno, Czech Republic,
jak.prochazka@mail.muni.cz
Abstract
This experiment tests the effectiveness of "sandwich" feedback. 91 university
students solved 12 mathematical problems from the secondary-school curriculum. After
the time limit, we assigned them randomly to one of three possible treatments. One
group received corrective computer-administrated feedback, describing the mistakes
with their methods and solutions. The second group received sandwich feedback,
consisting of the same corrective part presented between two general positive
statements unrelated to the participants’ actual performance. The third group did not
receive any feedback. Afterwards, the participants had 10 minutes to prepare for the
second set of similar problems. Participants who received sandwich feedback utilized
more time on preparation and solved more problems from the second set than the
participants from the other two groups. This study provides only partial evidence for the
effectiveness of sandwich feedbacks as it tested the effect under one specific condition
using computer-mediated written feedback on math test. Further replications are needed
to test the effect under various conditions, to test various forms of sandwich feedback,
to explain the mechanism of sandwich feedback and to show whether the effect of
sandwich feedback is caused by the specific sequence of feedback components or by
mere presence of positive statements.
Keywords: feedback, sandwich feedback, task performance, experiment
How to cite:
Prochazka, J., Ovcari, M., Durinik, M. (2020), Sandwich feedback: The empirical
evidence of its effectiveness, Learning and Motivation, 71, 101649,
https://doi.org/10.1016/j.lmot.2020.101649.
Full-text for subscribers (please use this link if you have institutional subscription):
https://doi.org/10.1016/j.lmot.2020.101649
Free full-text at Elsevier (for 50 downloads only, valid until August 07, 2020):
https://authors.elsevier.com/a/1bFui5SouyD1r
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