Table 1.

Means (and SDs) for all measures

	Control (N = 62)	Self-affirmation (N = 61)
T1
Message acceptance	4.52 (1.52)	4.30 (1.62)
Message derogation	3.69 (1.37)	3.70 (1.50)
Perceived risk	3.52 (1.26)	3.43 (1.20)
Response-efficacy	5.33 (0.97)	5.14 (1.09)
Self-efficacy	4.39 (1.48)	4.59 (1.16)
Behavioural expectations	3.03 (1.58)	2.74 (1.66)
Physical activity scale	2.15 (1.40)	2.22 (1.67)
Physical activity (past 7 days)	2.06 (1.35)	2.26 (1.72)
T2
Physical activity (past 7 days)	2.56 (1.75)	2.54 (2.03)