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  2. 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.

  3. File:Map of countries by EF English Proficiency Index (2021 ...

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

    English: This map seeks to show the level of English language proficiency in countries around the world in five proficiency categories represented by different colours. Very High Proficiency High Proficiency

  4. Enhanced Fujita scale - Wikipedia

    en.wikipedia.org/wiki/Enhanced_Fujita_scale

    The Enhanced Fujita scale (abbreviated as EF-Scale) is a scale that rates tornado intensity based on the severity of the damage they cause. It is used in some countries, including the United States and France. [1] The EF scale is also unofficially used in other countries, including China and Brazil.

  5. 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.

  6. EF Education First - Wikipedia

    en.wikipedia.org/wiki/EF_Education_First

    In 2011, EF introduced the EF English Proficiency Index, an annual ranking of countries by their English skills. [22] In 2014, EF launched the EF Standard English Test – a free, certifying English test designed for non-native English speakers. [23] [24] In the same year, EF partnered with Community Boating, Inc., the oldest public sailing ...

  7. International Standard Classification of Education - Wikipedia

    en.wikipedia.org/wiki/International_Standard...

    The International Standard Classification of Education (ISCED) is a statistical framework for organizing information on education maintained by the United Nations Educational, Scientific and Cultural Organization (UNESCO). It is a member of the international family of economic and social classifications of the United Nations. [1]

  8. National qualifications framework - Wikipedia

    en.wikipedia.org/wiki/National_Qualifications...

    A qualifications framework is a formalized structure in which learning level descriptors and qualifications are used in order to understand learning outcomes. [1] This allows for the ability to develop, assess and improve quality education in a number of contexts.

  9. High frequency - Wikipedia

    en.wikipedia.org/wiki/High_frequency

    HF's position in the electromagnetic spectrum.. High frequency (HF) is the ITU designation [1] [2] for the band of radio waves with frequency between 3 and 30 megahertz (MHz). It is also known as the decameter band or decameter wave as its wavelengths range from one to ten decameters (ten to one hundred meters).