Skip to main content

Table 1 Psychometric properties of scales and questionnaires related to PA from the pilot test (n = 35)

From: The prevalence and determinants of physical activity in secondary Vietnamese students: a hierarchical analysis

Name of tools

No. of main items

Test–retest (ICC)

Cronbach’s alpha (α)

PA self-efficacy

16

0.88

0.84

Beliefs in PA outcomes

16

0.90

0.71

Enjoyment of PA

16

0.90

0.86

Family influence on PA

8

0.92

0.78

Teacher influence on PA

6

0.88

0.84

ASAQ questionnaire

12

0.90

 − 

PAQ-C questionnaire

9

0.90

0.86

  1. Abbreviations: ICC Intraclass correlation coefficient, PA Physical activity, − not applicable