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.
Difference between the average estimated intraclass correlation (ICC) and the population ICC stratified by patients per therapist (m) and population ICC. Each cell of the simulation was replicated 1500 times. The number of therapists (k) was five. The pattern of results with other values of k was similar. Full results are available from the first author.
