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  2. EF Standard English Test - Wikipedia

    en.wikipedia.org/wiki/EF_Standard_English_Test

    The EF Standard English Test is a standardized test of the English language designed for non-native English speakers. [1] It is the product of EF Education First , a global language training company, and a team of language assessment experts including Lyle Bachman, Mari Pearlman, and Ric Luecht.

  3. EF English Proficiency Index - Wikipedia

    en.wikipedia.org/wiki/EF_English_Proficiency_Index

    The EF English Proficiency Index (EF EPI) attempts to rank countries by the equity of English language skills amongst those adults who took the EF test. [2] It is the product of EF Education First, an international education company, and draws its conclusions from data collected via English tests available for free over the internet.

  4. EF Education First - Wikipedia

    en.wikipedia.org/wiki/EF_Education_First

    EF Education First (abbreviated as EF) is an international education company that specialises in language training, educational travels, academic degree programmes, and cultural exchanges. The company was founded in 1965 by Bertil Hult in the Swedish university town of Lund .

  5. Common European Framework of Reference for Languages

    en.wikipedia.org/wiki/Common_European_Framework...

    An intergovernmental symposium in 1991 titled "Transparency and Coherence in Language Learning in Europe: Objectives, Evaluation, Certification" held by the Swiss Federal Authorities in the Swiss municipality of Rüschlikon found the need for a common European framework for languages to improve the recognition of language qualifications and help teachers co-operate.

  6. History of PDF - Wikipedia

    en.wikipedia.org/wiki/History_of_PDF

    256-bit AES encryption; incorporation of XFA Datasets into a file conforming PDF/A-2; improved attachment of Adobe Flash applications , video (including Flash video with H.264), audio, and other multimedia, two-way scripting bridge between Flash player and conforming applications, navigator SWF file may be loaded as an Adobe Flex 2 module or as ...

  7. File:EF Education First logo.svg - Wikipedia

    en.wikipedia.org/wiki/File:EF_Education_First...

    Do not copy this file to Wikimedia Commons. This file is free content in the United States but non-free or potentially non-free in its country of origin . Wikimedia Commons only accepts files that are public domain or freely licensed in both the country of origin and the United States.

  8. Envy-free item allocation - Wikipedia

    en.wikipedia.org/wiki/Envy-free_item_allocation

    Envy-free (EF) item allocation is a fair item allocation problem, in which the fairness criterion is envy-freeness - each agent should receive a bundle that they believe to be at least as good as the bundle of any other agent. [1]: 296–297 Since the items are indivisible, an EF assignment may not exist.

  9. File:EF SET logo.svg - Wikipedia

    en.wikipedia.org/wiki/File:EF_SET_logo.svg

    This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.