K. Benoit, K. Watanabe, H. Wang, P. Nulty, A. Obeng et al., Un Cadre Européen Commun de Référence Pour Les Langues: Apprendre, Enseigner, Évaluer Volume Complémentaire Avec de Nouveaux Descripteurs. Division des Politiques éducatives Service de l'Éducation, Conseil de l'Europe, vol.3, p.774, 2018.

S. Granger, G. Gilquin, and F. Meunier, The Cambridge Handbook of Learner Corpus Research, 2015.

S. Granger, Learner Corpora in Foreign Language Education, Encyclopedia of Language and Education, pp.1427-1468, 2008.

J. A. Hawkins and P. Buttery, Criterial Features in Learner Corpora: Theory and Illustrations, English Profile Journal, vol.1, issue.01, 2010.

C. Leacock, Automated Grammatical Error Detection for Language Learners, 2010.

A. Le?ko-szyma?ska and A. Boulton, Multiple Affordances of Language Corpora for Data-Driven Learning, 2015.

X. Lu, Automatic Analysis of Syntactic Complexity in Second Language Writing, International Journal of Corpus Linguistics, vol.15, issue.4, pp.474-496, 2010.

C. D. Manning, M. Surdeanu, J. Bauer, J. Finkel, S. J. Bethard et al., The Stanford CoreNLP Natural Language Processing Toolkit, Proceedings of the 52nd Annual Meeting of the Association for Computational Linguistics: System Demonstrations, pp.55-60, 2014.

S. Vajjala, Automated Assessment of Non-Native Learner Essays: Investigating the Role of Linguistic Features, International Journal of Artificial Intelligence in Education, 2017.

, Paterson Flesch Flesch.PSK Flesch.Kincaid FOG FOG.PSK FOG.NRI FORCAST FORCAST.RGL Fucks Linsear. Write LIW nWS nWS.2 nWS.3 nWS.4 RIX Scrabble SMOG SMOG.C SMOG.simple definitions ? Sentence: a group of words (including sentence fragments) punctuated with a sentence-final punctuation mark, such as a period, question mark, or exclamation mark. ? Clause: a structure with a subject and a finite verb, such as an independent,adjective, adverbial, or nominal clause (see, 1965.

, ? Dependent clause: a finite adjective, adverbial, or nominal clause, Hunt, 1965.

?. , a main clause plus any subordinate clause or non-clausal structure that is attached to or embedded in it, 1970.

, ? Complex T-unit: a T-unit with one or more dependent clauses (see, 1994.

, ? Coordinate phrase: a coordinate adjective, noun, or verb phrase

, ? Complex nominal: a noun plus an adjective, possessive, prepositional phrase,adjective clause, participle, or appositive; a nominal clause; or a gerund or infinitive in subject position (see, 1976.

, ? Verb phrase: a finite or nonfinite verb phrase

, Metrics and scopes: a taxonomy for learner feedback

. Mls, Bormuth family, Dale.Chall family, Farr.Jenkins.Paterson Fucks WS.3 nWS.4 Flesch Flesch.PSK Flesch.Kincaid FOG FOG.PSK Sentence.size.characters: Danielson.Bryan family, Dickes.Steiwer, Sentence.size.syllables : DRP ELF Flesch Flesch.PSK Flesch.Kincaid FOG FOG.PSK FOG.NRI RIX SMOG SMOG.C SMOG.simple Strain Sentence.components: Verb Phrase (VP) Clauses (C) T-Units (T) Dependent Clauses (DC) Coordinate Phrases (CP) Complex Nominals

. Vp/t-c/t-dc/c-dc/t-t/s-ct-ct/t-cp/t-cp/c-cn/t-cn/c-traenkle,

, Liau family (n sentences/n words) Linsear. Write Text.variation.words: TTR C (Log TTR) R (root TTR) CTTR U S Maas lgV0 lgeV0, Dickes.Steiwer Text.repetitions.types: Yule's K Simpson's D Herdan's Vm Text.sophistication.wordsDaleChalList: Bormuth Bormuth, Text.size.words: W Text.size.sentences: S Coleman