Table 2.
Percent of participants demonstrating unrealistic optimism | Mean | Standard deviation | t value | p value | Cohen’s d | |
---|---|---|---|---|---|---|
Compared with other trial participants how likely are you to | ||||||
Have your cancer cured by standard drugs? | 26.4 | −0.17 | 1.67 | −0.86 | NS | −0.207 |
Have you cancer controlled by the drugs in the trial? | 59.7 | 1.00 | 1.18 | 7.22 | p < 0.050 | 1.714 |
Experience a health benefit from the drugs in the trial? | 62.5 | 1.04 | 1.22 | 7.27 | p < 0.001 | 1.726 |
Experience a health problem from the drugs in the trial? | 38.9 | −0.37 | 1.24 | −2.57 | p < 0.050 | −0.610 |
Have your cancer cured by the drugs in the trial? | 40.3 | 0.17 | 1.62 | 0.88 | NS | 0.210 |