The Lancaster Language Testing Research Group was commissioned by the European Organisation for the Safety of Air Navigation (Eurocontrol) to conduct a validation study of the development of a test called ELPAC (English Language Proficiency for Aeronautical Communication), intended to assess the language proficiency of air traffic controllers.
As part of that study, Internet searches for evidence of other tests of air traffic control found very little evidence available to attest to the quality of the tests for licensure of either pilots or air traffic controllers.
Therefore it was decided to conduct an independent survey of tests of aviation English. This document reports on that survey.
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