Table 3.
MacArthur Competence Assessment Tool for Clinical Research (MacCAT-CR) Subscale Scores and Mini-Mental State Examination (MMSE) Scores of Subjects According to Willingness to Participate in Research
| Willing to Participate M (SD) | Unwilling to Participate M (SD) | Test of Difference | Significance | |
| Understandinga | 24.15 (3.52) | 19.42 (8.13) | t(21.95) = −2.41 | 0.025 |
| Appreciationa | 4.76 (1.60) | 3.63 (2.22) | t(28.97) = −1.94 | 0.06 |
| Reasoninga | 6.97 (1.79) | 5.68 (2.87) | t(26.27) = −1.76 | 0.09 |
| Express a Choice | ||||
| 2 | 97% (32) | 73.7% (14) | χ2(2) = 7.12 | 0.03 |
| 1 | 0% (0) | 15.8% (3) | ||
| 0 | 3% (1) | 10.5% (2) | ||
| MMSEb | 28.30 (2.07) | 25.78 (3.46) | t(25.18) = −2.78 | 0.01 |
M = mean; SD = standard deviation
a
N = 33 for Willing to Participate and n = 19 for Unwilling to Participate.
b
N = 27 for Willing to Participate and n = 18 for Unwilling to Participate.