Table 4 Mean, SD and range of item and person locations on the latent continuum, mean and SD of residuals, and person separation index, based on the data from the implementation of the Model Disability Survey in Afghanistan; Adamawa, Cameroon; Chile; Costa Rica; India; Tajikistan; Laos; Balochistan, Pakistan; Philippines; Qatar; and Sri Lanka in the period 2014–2019
Location mean | Location SD | Location range | Residuals mean | Residuals SD | |
|---|---|---|---|---|---|
Items | 0.2863 | 0.7788 | −1.48 to 1.74 | 0.019 | 0.0077 |
Persons | −1.2733 | 1.0822 | −2.91 to 3.41 | 0.5776 | 0.2227 |
Person separation index (PSI) | 0.82 |