Editorial Policy

Our commitment to accuracy, transparency, and quality in language assessment

Editorial Standards

CEFR Lookup maintains the highest standards of accuracy and transparency in our word level classifications and educational content.

Our editorial policy ensures that all content published on this platform meets rigorous academic and professional standards. We are committed to providing reliable, research-based information that educators and learners can trust for their language assessment needs.

Content Standards & Quality Assurance

Data Accuracy
  • All word classifications are verified against multiple authoritative sources
  • Minimum of 3 sources required for high-confidence classifications
  • Regular updates to reflect current linguistic research
  • Transparent confidence scoring for all assessments
Expert Review
  • All content reviewed by certified CEFR specialists
  • Educational materials validated by teaching professionals
  • Technical accuracy verified by computational linguists
  • Continuous peer review process for quality improvement

Review Process

1
Data Collection

Automated scraping and manual verification of word classifications from Cambridge Dictionary, Oxford Learner's Dictionary, and British Council sources.

2
Expert Analysis

Language assessment specialists review discrepancies, apply consensus algorithms, and validate classifications using established CEFR criteria.

3
Quality Validation

Final review by our editorial board, confidence scoring assignment, and publication with full source attribution and rationale.

Sources and Citations

We maintain complete transparency about our data sources and provide full attribution for all classifications:

Primary Sources
  • Cambridge English Dictionary
    Official CEFR level classifications from Cambridge University Press, regularly updated and verified.
  • Oxford Learner's Dictionary
    Comprehensive learner-focused classifications from Oxford University Press with pedagogical context.
  • British Council Word Lists
    Curated vocabulary lists based on extensive corpus analysis and educational research.
Supporting Research
  • Corpus Frequency Analysis
    Large-scale analysis of contemporary English usage patterns from academic and general corpora.
  • CEFR Framework Documentation
    Direct reference to Council of Europe CEFR guidelines and companion volumes.
  • Peer-Reviewed Research
    Academic literature on vocabulary acquisition, assessment, and second language learning.

Accuracy and Corrections

We are committed to maintaining the highest levels of accuracy and promptly addressing any errors or omissions.

Error Reporting

If you identify an error in our word classifications or content, please contact us at:

corrections@cefrlookup.com

Please include the specific word, the error details, and supporting evidence from authoritative sources.

Correction Process
  • Initial review within 48 hours
  • Expert verification of reported issues
  • Updates implemented within 7 days
  • Acknowledgment sent to reporter

Editorial Independence

Our editorial decisions are based solely on academic merit and accuracy, free from commercial or external influence.

Impartiality

All word classifications are based on objective, research-based criteria without bias toward any particular educational approach or commercial interest.

Conflicts of Interest

Our team declares any potential conflicts of interest, and editorial decisions are reviewed by independent experts when necessary.

Transparency

Our methodology, sources, and decision-making processes are fully documented and publicly available for scrutiny.

Questions About Our Editorial Policy?

We welcome questions and feedback about our editorial standards and processes.

Contact Editorial Team