The intervention was associated with significant improvements in dietary attitudes ( P = 0.003 ; F = 8.83 ) , dietary intentions ( P = 0.031 ; F = 4.72 ) , dietary self-efficacy ( P = 0.015 ; F = 5.97 ) , exercise self-efficacy ( P = 0.002 ; F = 9.51 ) , exercise habits ( P = 0.016 ; F = 5.94 ) , and coping with stress ( P = 0.003 ; F = 8.85 ) and depression ( P = 0.036 ; F = 4.46 ) .