Table 2 Measurement characteristics of the three models
From: Quantifying cognition at the bedside: a novel approach combining cognitive symptoms and signs in HIV
Model | Items remaining/tested | Fit χ2 (p) | Item location (logits) | Person location (logits) | Internal reliabilitya (PSI) |
|---|---|---|---|---|---|
Mean (SD) | Mean (SD) | ||||
MoCA alone | 23/28 | 47.946df (0.39) | 0.0 (1.3) | 2.3 (0.9) | 0.40 |
MoCA + computerized items | 23/23 + 9/14 | 69.860df (0.18) | 0.0 (1.5) | 1.9 (1.1) | 0.69 |
MoCA + computerized items+ PDQ items | 21/23 + 8/9 + 9/20 | 96.376df (0.06) | 0.0 (1.4) | 1.9 (0.7) | 0.73 |