Corpus-based analysis of second language writing errors and their pedagogical implications

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The analysis of the analysis of the error of writing and the achievement of the composition

Grade			Essay score	Error number
M1	Essay score	Correlation coefficient	1	-0.964**
		Sig	—	0.001
		N	115	115
	Writing error	Correlation coefficient	-0.964**	1
		Sig	0.000	—
		N	115	115
M2	Essay score	Correlation coefficient	1	-0.941**
		Sig	—	0.000
		N	103	103
	Writing error	Correlation coefficient	-0.941	1
		Sig	0.000
		N	103	103

Descriptive statistical results of the language of language

Writing scores and functional scores
	Writing score	Functional adequacy
		Content	Task requirement	comprehensibility	Coherence and cohesion
Mean value	6.25	3.83	5.71	4.55	4.35
Standard deviation	1.06	0.88	0.72	0.94	0.85
Six dimensions of language characteristics
Vocabulary			Syntax		Discourse
Vocabulary accuracy	Lexical complexity	Vocabulary diversity	Normal complexity	Grammar accuracy	Discourse coherence
0.98	0.23	18.59	13.52	0.75	0.62
Linguistic characteristics analyze descriptive data
	Vocabulary accuracy	Lexical complexity	Vocabulary diversity	Normal complexity	Grammar accuracy	Discourse coherence
Mean value	0.98	0.25	19.52	13.32	0.75	0.61
Standard deviation	0.02	0.03	3.75	1.55	0.15	0.17

The correlation analysis results of each variable and writing of language characteristics

Index	Writing score	Vocabulary accuracy	Lexical complexity	Vocabulary diversity	Syntax complexity	Grammar accuracy	Discourse coherence
Writing score	1
Vocabulary accuracy	0.05	1
Lexical complexity	0.26**	0.34***	1
Vocabulary diversity	0.35***	0.26**	0.22*	1
Syntax complexity	0.28**	-0.5	0.35***	0.33***	1
Grammar accuracy	-0.18	-0.35***	-0.01	-0.86***	0.31**	1
Discourse coherence	-0.12	-0.17	0.08	-0.23*	0.28**	0.38	1

Analysis of the difference between high scores and low group(M1)

Dimension	Scoring group		Low group		Independent sample t test
	Mean	Standard deviation	Mean	Standard deviation	T	Sig.
fm	0.961	0.855	5.264	2.362	-10.445	0.000
wd	2.323	1.015	6.951	2.471	-12.431	0.000
sn	1.092	0.931	4.542	2801	-10.585	0.001
vp	0.401	0.286	2.981	0.969	-5.663	0.000
np	0.592	0.971	2.221	1.372	-6.821	0.000
cc	0.311	0.234	0.843	0.482	-2.301	0.001
Pr	0.375	0.581	1.092	0.996	-3.721	0.000
PP	0.121	0.612	0.176	0.971	-1.603	0.101
aj	0.000	0.000	0.000	0.000	-	-
ad	0.155	2.889	0.182	0.368	-0.542	0.608
cj	0.002	0.001	0.081	0.293	-1.683	0.092

Analysis of the difference between high scores and low group(M2)

Dimension	Scoring group		Low group		Independent sample t test
	Mean	Standard deviation	Mean	Standard deviation	T	Sig.
fm	1.102	0.87	6.571	2.702	-9.149	0.000
wd	3.092	1.602	7.714	2.388	-12.981	0.001
sn	0.832	1.339	2.771	2.496	-9.605	0.000
vp	0.932	1.145	2.951	2.1	-6.343	0.001
np	0.482	0.717	1.451	1.153	-7.578	0.000
cc	0.522	0.908	1.541	1.378	-7.654	0.000
Pr	0.132	0.892	0.591	0.91	-6.528	0.000
PP	0.192	0.403	1.041	1.022	-2.478	0.000
aj	0.002	0.001	0.004	0.001	-0.871	0.095
ad	0.002	0.001	0.411	1.166	-0.924	0.087
cj	0.002	0.001	0.004	0.001	-0.574	0.095