Controlled Oral Word Association Test write down the words provided by the participant on a piece of paper. The whole examination usually takes 5–10 minutes. Controlled Oral Word Association Test Controlled Oral Word Association Test, abbreviated COWA or COWAT, is a verbal fluency test that measures spontaneous production of words belonging to the same category or beginning with some designated letter. The test was first called the "Verbal Associative Fluency Test", and then was changed to the "Controlled Word Association Test". The participant is usually asked to name words beginning with a letter, excluding proper nouns, for one minute and this procedure is repeated three
Most common words in English such as literary works, novels, academic journals, newspapers, magazines, Hansard's Parliamentary Debates, blogs, chat logs, and emails. Another English corpus that has been used to study word frequency is the Brown Corpus, which was compiled by researchers at Brown University in the 1960s. The researchers published their analysis of the Brown Corpus in 1967. Their findings were similar, but not identical, to the findings of the OEC analysis. According to "The Reading Teacher's Book of Lists", the first 25 words in the OEC make up about one-third of all printed material in English, and the first 100 words make up