Table 1.
Changes in self-appraisal, mood, and days of voluntary moderate-to-vigorous physical activity over 12 weeks. Data are means (±SD).
| Baseline | Week 12 | t | p | d | ||
|---|---|---|---|---|---|---|
| Treatment group (n=146) | ||||||
| Self-appraisal measure | ||||||
| General self | 28.4 (5.3) | 29.5 (4.8) | 3.00 | .003 | .19 | |
| Physical appearance | 31.2 (5.8) | 32.5 (5.8) | 3.73 | <.001 | .23 | |
| Physical self-concept | 35.0 (5.5) | 35.7 (5.5) | 1.99 | .05 | .14 | |
| Exerc. barriers self-efficacy | 26.5 (9.4) | 28.7 (9.8) | 4.53 | <.001 | .23 | |
| Mood Measure | ||||||
| Tension | 11.9 (4.5) | 10.1 (4.5) | -6.87 | <.001 | .42 | |
| Vigor | 15.9 (4.6) | 17.1 (4.3) | 3.94 | <.001 | .26 | |
| Voluntary phys. activity days/week | 2.3 (1.8) | 3.3 (1.8) | 7.09 | <.001 | .58 | |
| Control group (n=123) | ||||||
| Self-appraisal measure | ||||||
| General self | 29.5 (5.7) | 29.6 (6.4) | .84 | .40 | .01 | |
| Physical appearance | 31.0 (6.0) | 31.1 (6.1) | .63 | .63 | .03 | |
| Physical self-concept | 33.0 (4.6) | 33.2 (5.9) | .41 | .68 | .04 | |
| Exerc. barriers self-efficacy | 27.3 (8.5) | 27.4 (8.2) | .29 | .77 | .01 | |
| Mood Measure | ||||||
| Tension | 11.4 (4.6) | 11.6 (4.9) | .59 | .56 | -.04 | |
| Vigor | 16.3 (5.4) | 15.7 (5.6) | -1.10 | .27 | -.11 | |
| Voluntary phys. activity days/week | 2.3 (1.6) | 2.5 (2.2) | .97 | .33 | .09 | |
General self and physical appearance are scales of the Self-Description Questionnaire-I. Physical self-concept is a scale of the Tennessee Self-Concept Scale: 2. Tension and vigor are scales of the Profile of Mood States - Short Form. Exerc. barriers self-efficacy = Exercise Barriers Self-Efficacy Scale for Children. Voluntary physical activity days/week refers to recalled number of days in the previous week where moderate-to-vigorous physical activity was completed outside of PE and after-school care programming. SD = standard deviation; d = Cohen’s measure of effect size. Treatment group df=144; Control group df= 121.