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Table 9 Comparisons of the grammatical range and accuracy scores

From: Improving L2 learners’ IELTS task 2 writing: the role of model essays and noticing hypothesis

 

Mean difference

Z/U

p

Control group (CG) posttest–pretest

0.01

Z = − .783

0.434

The experimental group (EG) posttest–pretest

0.33

Z = − 2.585

0.01

Pretest: CG–EG

− 0.12

U = 333

0.919

Posttest: CG–EG

− 0.44

U = 247.5

0.065