TABLE 1.
Participant characteristics for test–retest reliability
| Year 1 and 2 (N = 52) | |||
|---|---|---|---|
| % (n) | Mean (SD) | Median [Q1–Q3] | |
| Sex | |||
| Male | 40.38% (21) | ||
| Female | 59.62% (31) | ||
| ID level | |||
| Borderline | 3.85% (2) | ||
| Mild | 55.77% (29) | ||
| Moderate | 38.46% (20) | ||
| Profound | 0% (0) | ||
| Severe | 0% (0) | ||
| Not documented | 1.92% (1) | ||
| Age | 38.96 (9.28) | 37.06 [32.66–44.75] | |
| Time (years) | 1.02 (0.10) | 1.02 [0.98–1.05] | |
| SIB total | 82.21 (15.92) | 87 [73.50–94] | |
| BPT total | 69.60 (8.79) | 72 [64.50–76] | |
| DLD total | 9.77 (8.38) | 7 [3–14.5] | |
| DLD cognitive | 4.44 (5.64) | 2 [0–6] | |
| DLD social | 5.33 (4.25) | 5 [2–8] | |
Abbreviations: BPT, Brief Praxis Test; DLD, Dementia Questionnaire for People with Learning Disabilities; ID, intellectual disability; SD, standard deviation; SIB, Severe Impairment Battery.