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Table 3 Descriptive Statistics of RALL and non-RALL Groups in Different Times of Testing

From: An innovative approach of incorporating a humanoid robot into teaching EFL learners with intellectual disabilities

   N Mean Std. Deviation Skewness Std. Error Kurtosis Std. Error
RALL Pre-test 5.00 14.00 2.12 0.52 0.91 −0.96 2.00
Post-test 5.00 26.40 1.14 0.40 0.91 −0.18 2.00
Delayed post-test 5.00 25.20 1.92 −1.52 0.91 2.61 2.00
Non-RALL Pre-test 5.00 16.40 3.21 −0.75 0.91 −2.04 2.00
Post-test 5.00 24.80 2.59 0.36 0.91 −2.41 2.00
Delayed post-test 5.00 22.80 4.32 0.04 0.91 −2.37 2.00