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Authors
Mirazchiyski, Plamen V. http://orcid.org/0000-0003-3452-6046
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Funding
Funding for this research was provided by:
International Educational Research and Evaluation Institute
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Article History
Received: 15 January 2021
Accepted: 13 September 2021
First Online: 4 October 2021
Declarations
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: In this manuscript the officially published PIRLS and PISA data sets were used in the examples. These data sets were downloaded as public use files from the IEA’s (ExternalRef removed) and OECD’s (ExternalRef removed) websites . Therefore, neither consent to participate or consent for publication nor ethics approval were required for the sample analyses.
: I provide my consent to publish this manuscript upon publication in the Springer open journal LSA.
: The author declares that he has no competing interests.
