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.
Response rates during stages 1 and 2 of Experiment 4, to the target CSs alone and when signalled by the occasion setters, the occasion setters alone, the transfer CSs, and the pseudo-occasion setters. Blocks 1–3 represent 6-session blocks, and blocks 3–6 8-session blocks.
