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. 2019 Feb 4;10(2):457–468. doi: 10.1093/tbm/ibz001

Table 3.

Standardized T-scores ± SD for decisional balance and temptation by stage

TTM construct n Mean (SD) 95% confidence interval η2 Post hoc Tukey HSD
Pros of smoking* .083 PC > C, PR
 Precontemplation 38 53.98 (8.96) [50.88, 57.01]
 Contemplation 52 48.01 (9.48) [45.35, 50.66]
 Preparation 21 47.73 (11.25) [43.55, 51.91]
Cons of smoking .006
 Precontemplation 38 49.18 (9.09) [45.94, 52.41]
 Contemplation 52 50.01 (10.63) [47.24, 52.77]
 Preparation 21 51.48 (10.27) [47.12, 55.83]
Temptations total* .079 PC > PR
 Precontemplation 38 52.96 (8.73) [49.85, 56.08]
 Contemplation 52 49.88 (10.27) [47.22, 52.54]
 Preparation 21 44.94 (9.82) [40.75, 49.12]
Negative affect .028
 Precontemplation 38 51.83 (9.24) [48.63, 55.02]
 Contemplation 52 49.86 (10.08) [47.13, 52.60]
 Preparation 21 47.03 (10.83) [42.73, 51.34]
Positive/social* .061 PC > PR
 Precontemplation 38 52.70 (9.13) [49.56, 55.84]
 Contemplation 52 49.78 (10.09) [47.10, 52.47]
 Preparation 21 45.65 (10.10) [41.42, 49.88]
Habit strength** .123 PC, C > PR
 Precontemplation 38 53.55 (8.44) [50.51, 56.59]
 Contemplation 52 50.01 (10.17) [47.41, 52.61]
 Preparation 21 43.55 (9.32) [39.46, 47.63]

Eta-square values can be categorized as small (.01), medium (.06), or large (.14) [40, 41].

F-test significant at *p < .05; ** p < .01.