Table 2.
Descriptive statistics, internal reliability coefficients and Pearson correlation coefficients (n = 449).
| Variable (Range of Possible Score) | Mean (SD) | α | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. PA self-efficacy (1,4) | 2.13 (0.59) | 0.92 | |||||||||
| 2. PA preference (1,4) # | 2.86 (0.42) | 0.85 | 0.55 *** | ||||||||
| 3. Intrinsic motivation for PA (1,7) | 5.34 (1.73) | 0.86 | 0.52 *** | 0.51 *** | |||||||
| 4. Identified regulation for PA (1,7) | 5.03 (1.58) | 0.81 | 0.45 *** | 0.46 *** | 0.70 *** | ||||||
| 5. Introjected regulation for PA (1,7) # | 3.05 (1.72) | 0.72 | 0.52 *** | 0.39 *** | 0.47 ** | 0.49 *** | |||||
| 6. External regulation for PA (1,7) # | 2.40 (1.35) | 0.73 | 0.28 *** | 0.14 | 0.10 | 0.21 ** | 0.53 ** | ||||
| 7. Autonomous motivation (1,7) | 5.13 (1.52) | 0.89 | 0.53 *** | 0.53 ** | 0.88 *** | 0.95 *** | 0.50 ** | 0.19 ** | |||
| 8. Controlled motivation (1,7) # | 2.64 (1.30) | 0.80 | 0.45 *** | 0.33 ** | 0.32 ** | 0.40 ** | 0.84 ** | 0.89 *** | 0.40 *** | ||
| 9. PAQ-C score (1,5) ¶ | 2.71 (0.70) | 0.78 | 0.63 *** | 0.53 ** | 0.53 *** | 0.42 *** | 0.41 ** | 0.20 ** | 0.50 *** | 0.34 ** | |
| 10. Objective MVPA (min/day) #,¶ | 43.09 (12.74) | 0.72 | 0.35 *** | 0.24 * | 0.29 ** | 0.22 ** | 0.24 ** | 0.13 | 0.31 ** | 0.22 ** | 0.39 ** |
Notes: PA, physical activity; PAQ-C, Physical Activity Questionnaire for Older Children; MVPA, Moderate- to vigorous- intensity PA. Partial correlation coefficients were reported with adjustment for gender and age. α, Cronbach’s alpha for variable 1–9, intraclass correlation coefficient across days for variable 10. ¶ The analyses between psychological correlates and PA behaviors were conducted among participants who provided valid accelerometer data (n = 365). # Significant differences between genders, p < 0.05 using independent t-tests. * p < 0.05, ** p < 0.01, *** p < 0.001.