Table 2

 Mean (SD) values and test statistics for cognitive predictors as a function of text version (n = 42)

Scale (end points)Intervention textOriginal textDifference(95% CI)Effect size(Cohen’s d)t value(df = 82)
Higher scores indicate stronger intentions, more positive attitudes and increased perceived behavioural control.
*p<0.05; **p<0.01.
Intention (1 least, 5 most)3.71 (0.97)3.23 (1.08)0.48 (0.04 to 0.93)0.472.161*
Attitude toward the behaviour(1 least positive, 5 most positive)4.26 (0.75)3.64 (1.00)0.62 (0.24 to 1.00)0.703.207**
Perceived behavioural control(1 least, 5 most)3.91 (0.67)3.33 (0.74)0.58 (0.27 to 0.88)0.823.739**