Table 1.

Descriptive statistics of writing skills, holistic writing, writing motivation, and writing self-efficacy for both groups.

	Group	N	Mean	Std. deviation	Std. error mean
Content1	Experimental	30	13.0050	2.31466	0.42260
	Control	28	12.7500	1.96968	0.37223
Content2	Experimental	30	17.1998	3.34222	0.61020
	Control	28	14.1736	2.57358	0.48636
Organization1	Experimental	30	11.5259	1.52394	0.27823
	Control	28	11.2054	1.49574	0.28267
Organization2	Experimental	30	15.6060	2.77759	0.50712
	Control	28	13.5750	2.80339	0.52979
Language1	Experimental	30	13.2548	1.75253	0.31997
	Control	28	12.8862	1.72010	0.32507
Language2	Experimental	30	16.8192	2.33682	0.42664
	Control	28	14.5487	1.98730	0.37556
Vocabulary1	Experimental	30	7.9817	2.22261	0.40579
	Control	28	7.4118	2.54629	0.48120
Vocabulary2	Experimental	30	10.1829	2.71970	0.49655
	Control	28	8.3430	2.69091	0.50853
Mechanics1	Experimental	30	5.2867	1.40975	0.25738
	Control	28	5.6596	1.50777	0.28494
Mechanics2	Experimental	30	7.0539	1.78201	0.32535
	Control	28	5.9907	1.89296	0.35774
Writing11	Experimental	30	54.4833	9.32967	1.70336
	Control	28	56.2143	12.18790	2.30330
Writing2	Experimental	30	69.9000	10.20260	1.86273
	Control	28	63.9286	12.16226	2.29845
Motivation1	Experimental	30	18.4667	4.41770	0.80656
	Control	28	19.7500	2.82023	0.53297
Motivation2	Experimental	30	24.2833	4.26631	0.77892
	Control	28	21.3929	2.76338	0.52223
Self.efficacy1	Experimental	30	19.9833	4.56464	0.83339
	Control	28	20.8571	3.24852	0.61391
Self.efficacy2	Experimental	30	28.8833	7.72555	1.41049
	Control	28	23.0893	3.90644	0.73825

¹It refers to holistic writing.