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

Table 4

Estimated marginal means.

Dependent variable: immediate posttest
Instruction	Mean	Std. error	95% confidence interval
			Lower bound	Upper bound
Online peer feedback	13.806^a	0.512	21.615	24.243
Non-peer-feedback	8.011^a	0.512	11.018	14.002

^aCovariates appearing in the model are evaluated at the following values: pretest = 4.55.