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Table 2 Descriptive statistics of replicated questions of RSQE Designs

From: Practical randomly selected question exam design to address replicated and sequential questions in online examinations

QPR

Descriptive statistic

Mean

Standard Error

Median

Mode

Standard Deviation

Sample Variance

Kurtosis

Skewness

Range

Minimum

Maximum

10%

Design 1

10.00%

0.33%

10.00%

9.00%

3.31%

0.11%

−0.23

0.23

16.00%

2.00%

18.00%

Design 2

10.00%

0.34%

10.00%

9.00%

3.37%

0.11%

0

0.21

17.00%

3.00%

20.00%

Design 3

10.00%

0.31%

10.00%

8.00%

3.14%

0.10%

−0.31

0.24

16.00%

3.00%

19.00%

Design 4

10.00%

0.30%

10.00%

11.00%

2.98%

0.09%

−0.39

0.16

14.00%

4.00%

18.00%

5%

Design 1

5.00%

0.23%

5.00%

4.00%

2.29%

0.05%

−0.59

0.26

10.00%

1.00%

11.00%

Design 2

5.00%

0.22%

5.00%

4.00%

2.19%

0.05%

0.21

0.53

11.00%

1.00%

12.00%