Language assessment or language testing is a field of study under the umbrella of applied linguistics. Its main focus is the assessment of first, second or other language in the school, college, or university context; assessment of language use in the workplace; and assessment of language in the immigration, citizenship, and asylum contexts. The assessment may include listening, speaking, reading, writing, an integration of two or more of these skills, or other constructs of language ability. Equal weight may be placed on knowledge (understanding how the language works theoretically) and proficiency (ability to use the language practically), or greater weight may be given to one aspect or the other.
The earliest works in language assessment in the United States date back to the 1950s to the pioneering studies and test created by Robert Lado and David Harris. The earliest large scale assessments in the United States were referred to as the Michigan Tests, developed by the English Language Institute at the University of Michigan, now known as CaMLA, and the Test of English as a Foreign Language (TOEFL) developed by Educational Testing Service (ETS), Princeton, New Jersey.
The English Language Institute at the University of Michigan (CaMLA) was established in 1941 and was the first of its kind in the United States. Charles Fries, Director of ELI, and Robert Lado, Director of Testing at ELI, were determined to put foreign language teaching and testing on a "scientific" footing. The first test launched in 1946 was the Lado Test of Aural Comprehension. Approximately 10 years later, a full suite of tests had been assembled: "an English language test battery", which was administered to incoming foreign students at Michigan and other universities. Today this is known at the Michigan English Language Assessment Battery (MELAB). In 1953, the ELI also developed the ECPE (Examination for the Certificate of Proficiency in English) exam, under contract to the United States Information Agency, for use abroad.