Time 1

Time 2

Contrast within-subjects

M (SD)

M (SD)

F (1, 349)

η2

p

Expectancy-related beliefs

4.23 (.68)

4.18 (.53)

2.56

.01

.111

Task values

4.17 (.68)**

3.95 (.68)**

26.87

.07

.001

Intention

4.37 (.86)**

4.18 (.95)**

14.84

.04

.001

Physical activity

3.34 (.86)

3.31 (.61)

.74

.00

.390