Table 2 Descriptive statistics of study variables

 Intrinsic regulation

2.889

1.439

0.399

0.913

1

5

 Integrated regulation

2.597

1.380

0.809

0.866

1

5

 Identified regulation

3.053

1.273

0.491

0.846

1

5

 Introjected regulation

2.783

1.433

0.564

0.887

1

5

 External regulation

1.984

1.367

1.669

0.900

1

5

 Amotivation

2.250

1.453

1.235

0.915

1

5

 RAI

3.502

7.642

0.088

–

 Exercise self-efficacy

2.777

0.747

−0.464

0.924

1

4

 Physical competence

7.122

3.097

−1.022

0.966

0

10

 Ball Competence

7.873

2.575

−1.514

0.934

0

10