Sketch competence

Sketch competence

Sketch competence

Sketch competence

Group

The experimental group

The controlled group

The experimental group

Group

The experimental group

The controlled group

Number

30

30

30

30

30

30

Kendall’s W test

0.659

0.611

0.657

0.643

0.691

0.756

Chi-square

118.628

110.004

118.275

115.701

124.336

136.114

Degree of freedom

6

6

6

6

6

6

Gradual significance

0.000

0.000

0.000

0.000

0.000

0.000