Predictor
|
Mediator
|
Outcome
|
Path a
|
Path b
|
Path c
|
Path c’
|
Indirect effect
|
R2
|
---|
| | |
Coef (SE)
|
Coef (SE)
|
Coef (SE)
|
Coef (SE)
|
Coef (SE)
| |
---|
| | | | | | |
95% CI
| |
---|
Analysis 1◊
|
Treatment
|
ΔFruit & Vegtable
|
ΔExercise
|
.57(.18)†
|
3.33(.64)†
|
4.23(2.04)*
|
2.23(1.98)
|
1.89(.70)
|
.10†
|
| | | | | | |
.73, 3.53
| |
Treatment
|
ΔExercise
|
ΔFruit & Vegetable
|
4.13(2.04)*
|
.03(.01)†
|
.57(.18)†
|
.46(.17)†
|
.10(.06)
|
.12†
|
| | | | | | |
.01, .24
| |
Analysis 2◊
|
ΔExercise
|
ΔSelf-efficacy-Eat
|
ΔFruit & Vegetable
|
.71(.09)†
|
.02(.00)†
|
.03(.01)†
|
.01(.01)†
|
.01(.00)
|
.19†
|
| | | | | | |
.01, .02
| |
ΔExercise
|
ΔFruit & Vegetable
|
ΔSelf-efficacy-Eat
|
.03(.01)†
|
5.98(1.00)†
|
.71(.09)†
|
.55(.09)†
|
.16(.05)
|
.27†
|
| | | | | | |
.08, .26
| |
Analysis 3◊
|
ΔExercise
|
ΔMood
|
ΔFruit & Vegetable
|
-.44(.04)†
|
-.03(.01)†
|
.03(.01)†
|
.01(.01)*
|
.01(.00)
|
.16†
|
| | | | | | |
.01, .02
| |
ΔExercise
|
ΔFruit & Vegetable
|
ΔMood
|
.03(.01)†
|
-2.25(.49)†
|
-.44(.04)†
|
-.38(.04)†
|
-.06(.02)
|
.32†
|
| | | | | | |
-.09, -.03
| |
Analysis 4◊
|
ΔExercise
|
ΔSelf-regulate-Eat
|
ΔFruit & Vegetable
|
.17(.02)†
|
.07(.02)†
|
.03(.01)†
|
.02(.01)†
|
.01(.00)
|
.15†
|
| | | | | | |
.01, .02
| |
ΔExercise
|
ΔFruit & Vegetable
|
ΔSelf-regulate-Eat
|
.03(.01)†
|
.78(.19)†
|
.16(.02)†
|
.15(.02)†
|
.02(.01)
|
.31†
|
| | | | | | |
.01, .04
| |
Analysis 5
|
ΔFruit & Veg
|
ΔExercise self-efficacy
|
ΔExercise
|
.34(.38)†
|
.54(.09)†
|
3.46(.63)†
|
3.28(.60)†
|
.18(.29)
|
.18†
|
| | | | | | |
-.34, .82
| |
ΔFruit & Veg
|
ΔExercise
|
ΔExer self-efficacy
|
3.46(.63)†
|
.20(.03)†
|
.34(.38)
|
-.34(.38)
|
.68(.20)
|
.11†
|
| | | | | | |
.36, 1.17
| |
Analysis 6◊
|
ΔFruit & Veg
|
ΔMood
|
ΔExercise
|
-3.58(.52)†
|
-.56(.06)†
|
3.46(.63)†
|
1.46(.60)*
|
2.01(.38)
|
.29†
|
| | | | | | |
1.37, 2.84
| |
ΔFruit & Veg
|
ΔExercise
|
ΔMood
|
3.46(.63)†
|
-.38(.04)†
|
-3.58(.52)†
|
-2.25(.49)†
|
-1.32(.34)
|
.32†
|
| | | | | | |
-2.04, -.72
| |
Analysis 7◊
|
ΔFruit & Veg
|
ΔSelf-regulate-Ex
|
ΔExercise
|
1.96(.26)†
|
1.31(.12)†
|
3.46(.63)†
|
.89(.58)
|
2.57(.59)
|
.37†
|
| | | | | | |
1.60, 3.62
| |
ΔFruit & Veg
|
ΔExercise
|
ΔSelf-regulate-Ex
|
3.46(.63)†
|
.23(.02)†
|
1.96(.23)†
|
1.16(.23)†
|
.80(.17)
|
.41†
|
| | | | | | |
.46, 1.15
| |
- Note. The Delta symbol (Δ) denotes change from baseline to week 26. Path a = predictor → mediator;
- Path b = mediator → outcome; Path c = predictor → outcome; Path c’ = predictor → outcome (controlling for the mediator).
- *p < .05, †p < .01.
- ◊denotes a reciprocal effect between the mediator and outcome variables (resulting from the predictor).