Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Item response theory electronic health unidimensionality indices, N=703.
| Unidimensionality index | Value |
| ECVa | 0.76 |
| Omega reliability | 0.99 |
| Hierarchical omega | 0.92 |
| H replicability | 0.95 |
| Factor determinacy | 0.99 |
| ARPBb | 0.09 |
| IECVc (number of items >0.80) | 5 |
aECV: estimated common variance.
bARPB: average relative parameter bias.
cIECV: item estimated common variance.
