SAWS’ Sensitivity to Change
To investigate SAWS’ sensitivity to change, pre-test and post-test scores for the intervention group and comparison group were compared. A 2 × 2 (Group by Time) repeated measures ANOVA revealed a signi fi cant interaction, F (1, 49) = 13.88, p < 0.001. Post hoc analyses indicated no change in spirit at work scores in the comparison group from pre ( M = 85.6) to post ( M = 84.5). However, there was a signi fi cant increase in scores in the intervention group from pre ( M = 81.2) to post ( M = 90.5), providing evidence of the effectiveness of the intervention and demonstrating SAWS’ ability to detect change.