Table 2

Precomparison/postcomparison of attitude subscales of total sample (n=51) and intervention completers only (n=33)

Factor of attitude scale Sample Preintervention
mean (SD)
Postintervention
mean (SD)
Difference in
means (95% CI)
P value* Effect size
(Cohen’s d)
EffectivenessTotal (n=51)10.40 (2.17)11.08 (1.56)0.82 (0.09 to 1.55)0.03†0.31
NegativityTotal (n=51)12.07 (1.91)12.57 (1.77)0.61 (-0.23 to 1.45)0.15
WorryTotal (n=51)5.50 (1.34)5.40 (1.31)−0.10 (-0.59 to 0.40)0.69
EffectivenessIntervention completers only (n=33)9.88 (2.23)11.12 (1.69)1.24 (0.35 to 2.13)0.008**0.49
NegativityIntervention completers only (n=33)11.79 (2.04)12.67 (1.57)0.87 (-0.05 to 1.81)0.06
WorryIntervention completers only (n=33)5.57 (1.39)5.60 (1.34)0.03 (-0.58 to 0.64)0.92
  • *Calculated through paired samples t- test.

  • †Statistically significant at 0.05 level.