Table 2.
Comparisons between oncologist and patient ratings
| M (SD) | |||||||
|---|---|---|---|---|---|---|---|
| Measure | Patient | Oncologist | r | t (d) | Underestimation (%) | Acceptable Estimation (%) | Overestimation (%) |
| Depressive Symptoms | 3.46 (3.33) | 3.94 (3.50) | .29*** | 1.67 (−.14) | 15.9 | 62.7a | 21.4 |
| A) Sadness | .54 (.72) | .70 (.73) | .31*** | 2.66** (−.22) | 18.4 | 48.8b | 32.8 |
| B) Pessimism | .77 (.88) | .95 (.91) | .22** | 2.27* (−.20) | 2.2 | 41.3 | 36.3 |
| C) Failure | .34 (.69) | .30 (.53) | .08 | -.63 (.07) | 18.4 | 63.2 | 18.4 |
| D) Dissatisfact. | .35 (.57) | .47 (.67) | .18* | 2.16 (−.19) | 17.9 | 57.2 | 24.9 |
| E) Guilt | .25 (.66) | .24 (.57) | .08 | -.13 (.02) | 11.9 | 74.6 | 13.4 |
| F) Self-Dislike | .21 (.47) | .17 (.42) | .09 | -.95 (.09) | 14.9 | 73.1 | 11.9 |
| G) Suicidal Idea | .26 (.63) | .09 (.35) | .29*** | −3.65*** (.33) | 13.4 | 82.1 | 4.5 |
| H) Body Image | .74 (.90) | 1.01 (.90) | .18* | 3.27** (−.30) | 21.9 | 38.3 | 39.8 |
| Distress | 1.80 (1.60) | 3.07 (1.73) | .35*** | 9.47*** (−.76) | 8.5 | 42.3c | 49.3 |
Note. aEvaluations of depression were considered acceptable when situated within 17 points away from the patient’s score. This margin is based on an α of .81, calculated for the patient BDI-SF; bEvaluations on BDI-SF items were considered acceptable when they exactly matched the patient’s score; cEvaluations of distress were considered acceptable when situated within 6.3 points away from the patient’s score. This margin is based on a test-retest r of .80, reported in a recent validation study of the DT (Tang et al. 2011).
*p < .05, **p < .01, ***p < .001.