Table 4.
EFA-results for the impairment items 25 of the ADHD Rating Scale—5.
| Items | Cmnl. | Factor loadings (λ) | |||||
|---|---|---|---|---|---|---|---|
| C1 | C2 | C3 | C4 | C5 | C6 | ||
| Attention to details | 0.56 | 0.39 | 0.03 | 0.31 | 0.16 | −0.02 | 0.16 |
| Sustaining attention | 0.99 | −0.02 | 0.02 | 1.00 | 0.00 | 0.00 | 0.00 |
| Does not seem to listen | 0.76 | 0.01 | −0.04 | 0.03 | 0.89 | 0.00 | −0.02 |
| Follow instructions | 0.69 | 0.02 | 0.14 | −0.03 | 0.66 | 0.07 | 0.13 |
| Difficulty organizing | 0.64 | 0.03 | 0.00 | 0.10 | 0.13 | 0.55 | 0.31 |
| Sustained mental effort | 0.54 | 0.01 | −0.02 | 0.08 | 0.14 | 0.57 | 0.16 |
| Fidgets | 1.00 | 1.01 | 0.01 | −0.02 | −0.01 | 0.00 | 0.00 |
| Leaves seat | 0.63 | 0.29 | −0.06 | 0.29 | 0.06 | 0.33 | −0.22 |
| Runs about | 0.72 | 0.07 | 0.29 | 0.03 | 0.49 | 0.07 | −0.23 |
| Playing quietly | 1.00 | 0.01 | 0.96 | 0.02 | 0.02 | 0.02 | 0.01 |
| On the go | 0.62 | 0.07 | 0.14 | 0.02 | −0.05 | 0.68 | 0.00 |
| Talks excessively | 0.62 | 0.01 | 0.04 | −0.01 | 0.03 | 0.74 | −0.15 |
| R 2 | 0.17 | 0.15 | 0.17 | 0.22 | 0.25 | 0.03 | |
Cmnl. = communalities; rotation = oblimin; extraction = Maximum Likelihood; N = 3,742, R2cumul. = 0.73, RMSR = 0.01.