Critically examine the terms Authenticity,Practicality,Reliability,Validity and Washback vis-a-vis the History of Language Tests and Assessments. 

The history of language tests and assessments has been shaped by a range of evolving concepts, particularly in terms of authenticity, practicality, reliability, validity, and washback. Each of these terms has gained significance over time, reflecting changes in educational theory, teaching strategies, and assessment design.

Authenticity in language testing refers to the extent to which a test reflects real-world language use. Historically, early language assessments often focused on written tests that lacked real-life context, such as grammar exercises or vocabulary drills, leading to a growing call for more authentic assessments. In the 1970s and 1980s, the communicative language teaching movement emphasized the need for tests that mirrored actual language tasks students would face, such as giving directions or participating in conversations. Authenticity, therefore, shifted from being ____ ____ ____ ____ ______ _________ _______ __________ ______ ________ ____.
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