Table 3.
Treatment Effect Estimates on Self-Determination Theory Constructs Stratified by Ethnicity/Race.
| African American: Treatment Effect, β (95% CI) | Hispanic: Treatment Effect, β (95% CI) | White: Treatment Effect, β (95% CI) | Mixed or Other: Treatment Effect, β (95% CI) | |
|---|---|---|---|---|
| Exercise motivationa,b Ski motivationa Autonomyd Competencee,b Relatednesse |
1.08 (0.03 to 2.14)c 1.51 (0.18 to 2.85))c 1.01 (−0.46 to 2.47) 1.95 (0.91 to 2.99)c 1.21 (−0.27 to 2.69) |
−0.02 (−1.76 to 1.72) 1.48 (0.18 to 2.79)c −1.17 (−3.47 to 1.14) −0.14 (−1.69 to 1.42) 0.93 (−0.51 to 2.37) |
0.92 (−2.07 to 3.91) 0.1 (−2.28 to 2.47) −0.39 (−3.08 to 2.3) 0.63 (−0.94 to 2.19) 0.41 (−1.9 to 2.71) |
−1.1 (−2.43 to 0.22) −0.14 (−1.65 to 1.38) 0.49 (−1.59 to 2.56) −0.19 (−1.64 to 1.26) 0.08 (−1.69 to 1.84) |
Abbreviation: CI, confidence interval.
a
Range of possible scores for the motivation scales is 4 to 20.
b
The interaction term of treatment × race is significant at P < .05.
c
Minne-Loppet arm differs significantly from the control arm at P < .05.
d
Range of possible scores for the autonomy scale is 6 to 30.
e
Range of possible scores for the competence and relatedness scales is 5 to 25.