Objective of Study INTRODUCTION
Furthermore, Brown stated that mistakes refers to a performance error that is either a random guess or a slip, in that it is a failure to utilize a known
system correctly. It means mistake can be self-corrected when attention is called. Whereas, an error is the use of linguistic item in a way that a fluent or
native speaker of the language regards it as showing faulty or incomplete learning.
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In other words, it occurs because the learner does not know what is correct, and thus it cannot be self-corrected.
To distinguish between an error and mistake, Ellis suggests two ways. The first one is to check the consistency of learner
‟s performance. If he sometimes uses the correct form and sometimes the wrong one, it is a
mistake. However, if he always uses it incorrectly, it is then an error. The second way is to ask learner to try to correct his own deviant utterance.
Where he is unable to, the deviations are errors; where he is successful, they are mistakes.
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From the definition above, it can be concluded that an error made by a student because they might not know what the correct form and believe what
they are writing or speaking is correct. Whereas a mistake is slip of the tongue or pen. They might make a mistake because of their carelessness, less
concentration or quick writing. And to be able to distinguish error and mistake the students do, we can check the consistency of learners
‟ performance and their ability in to correct it by themselves.
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H. Douglas Brown, Principles of Language Learning and Teaching: Fourth edition, New York: Adisson Weasley Longman, Inc, 2000, p. 217
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Rod Ellis, Second Language Acquisition, Oxford: Oxford University Press, 2003, p.17.