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. 2020 Nov 23;6(11):e05536. doi: 10.1016/j.heliyon.2020.e05536

Table 2.

Descriptive statistics of spatial ability.

Experimental Class
 Control Class
 Gain Index Value
Pre-test Post-test Pre-test Post-test Experimental Control
Mean value 19.37 26.71 19.00 24.94 0.68 0.54
Variance 8.95 7.15 5.83 6.34 0.07 0.05
Standard Deviation 2.99 2.67 2.41 2.52 0.26 0.22