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Table 1 One-Sample Kolmogorov-Smirnov Test (Groups’ Pre and Post-tests)

From: Effects of different text difficulty levels on Iranian EFL learners’ foreign language Reading motivation and Reading comprehension

  Pre i + 1 Post i + 1 Pre i-1 Post i-1
N 20 20 20 20
Normal Parametersa,b Mean 11.8000 15.3000 11.6500 12.6500
Std. Deviation .41039 1.45458 .48936 1.63111
Most Extreme Differences Absolute .487 .332 .413 .355
Positive .313 .332 .258 .355
Negative −.487 −.186 −.413 −.225
Kolmogorov-Smirnov Z 2.178 1.483 1.846 1.587
Asymp. Sig. (2-tailed) .081 .055 .052 .063
  1. aTest distribution is Normal
  2. b. Calculated from data