Cultivating Iranian IELTS Candidates’ Writing Skills through Online Peer Feedback: A Mixed-Methods Inquiry

Table 3

Inferential statistic for comparing the online peer feedback and non-peer-feedback.

Tests of between-subject effects
Dependent variable: immediate posttest
Source	Type III sum of squares	df	Mean square	F	Sig.	Partial eta squared
Corrected model	442.329^a	2	221.164	40.023	0.000	0.680
Intercept	188.332	1	188.332	54.876	0.000	0.654
Pretest	31.035	1	31.035	6.008	0.033	0.151
Instruction	169.881	1	169.881	51.762	0.000	0.682
Error	77.337	24	3.222
Total	21986.000	27
Corrected total	788.400	26

^aR squared = 0.680 (adjusted R squared = 0.653).