Scientific consensus contradicts this claim.

What's still open

What the evidence found 3 findings
Based on 13 sources:
PMC article on standardized test scores and cognitive ability peer-reviewed View
Educational Research Review meta-analysis peer-reviewed View
PMC article on testing effects peer-reviewed View
Facebook blog View
Tutor Doctor blog View
MIT News institutional View
PMC peer-reviewed View
Harvard Gazette institutional View
PMC peer-reviewed View
University of Pennsylvania SP2 institutional View
PubMed peer-reviewed View
ResearchGate peer-reviewed View
MedEdPORTAL peer-reviewed View
Based on 14 sources:
PMC peer-reviewed View
ScienceDirect peer-reviewed View
Edutopia institutional View
Simply Psychology institutional View
Verywell Mind institutional View
Northern Illinois University Center for Innovative Teaching and Learning institutional View
ResearchGate peer-reviewed View
TEM Journal peer-reviewed View
PMC - NIH peer-reviewed View
Taylor & Francis Online peer-reviewed View
MDPI peer-reviewed View
PMC (PubMed Central) peer-reviewed View
ScienceDirect peer-reviewed View
Springer peer-reviewed View
Based on 13 sources:
PMC (PubMed Central) peer-reviewed View
Harvard Gazette institutional View
ResearchGate peer-reviewed View
University of Pennsylvania institutional View
New York Times news View
The Society Pages blog View
Academic Research Paper peer-reviewed View
Reddit blog View
LinkedIn blog View
The New York Times news View
PMC (PubMed Central) peer-reviewed View
Facebook post blog View
PubMed peer-reviewed View
What research hasn't answered 4 gaps
PMC article on standardized test scores and cognitive ability peer-reviewed View
Educational Research Review meta-analysis peer-reviewed View
PMC article on testing effects peer-reviewed View
Facebook blog View
Tutor Doctor blog View
PMC article on standardized test scores and cognitive ability peer-reviewed View
Educational Research Review meta-analysis peer-reviewed View
PMC article on testing effects peer-reviewed View
Facebook blog View
Tutor Doctor blog View
PMC peer-reviewed View
ScienceDirect peer-reviewed View
Edutopia institutional View
Simply Psychology institutional View
Verywell Mind institutional View
PMC peer-reviewed View
ScienceDirect peer-reviewed View
Edutopia institutional View
Simply Psychology institutional View
Verywell Mind institutional View
Sources 19 findings
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Gardner argumentation
tree-leaf argumentation
tree-leaf argumentation
tree-leaf argumentation
argumentation Unknown
argumentation Unknown
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Generated by reaso.ai's editorial pipeline: claim restated, scientific consensus classified via 3-run majority vote, 19 findings enriched with attribution and study type, narrative written in neutral voice. No individual researcher has signed off on this specific analysis — see methodology for how the pipeline works. Built with Claude Sonnet by Anthropic. Updated April 16, 2026. How we do this →

Written by AI. Sources are linked for verification.