Table 3.
Known-Group-Tests for construct validity of the PRE-ADS-D – Results of the t-tests
| Age Groups | Under 65 years (n = 223) | 65 years and older (n = 33) | t1 | Cohen’s d2 | P 3 |
| mean score M | 81.182 | 77.054 | 2.216 | 0.413 | <0.05 |
| Affected Family Member | Yes (n = 101) | No (n = 155) | t | d | p |
| mean score M | 78.584 | 76.935 | 1.283 | 0.164 | >0.05 |
| Participated in dementia training | Yes (n = 77) | No (n = 179) | t | d | p |
| mean score M | 76.558 | 78.028 | – 1.072 | – 0.146 | >0.05 |
1t = t-value, t-test statistic, 2Cohen’s d = value for measuring effect size, 3p = significance.