From: Effects of different text difficulty levels on Iranian EFL learners’ foreign language Reading motivation and Reading comprehension
groups
N
Mean
Std. Deviation
Std. Error Mean
Pretest
i-1 group
20
81.40
5.80
1.29
i + 1 group
81.80
6.30
1.40
Posttest
82.15
6.73
1.50
128.35
16.54
3.691