Article originally published in HSR, Volume 43, Number 6, December 2008.

The following grant numbers were omitted from the acknowledgments section of the article “Can Additional Patient Experience Items Improve the Reliability of and Add New Domains to the CAHPS® Hospital Survey?” on p. 2220:

Data analyses were supported by cooperative agreements from the Agency for Healthcare Research and Quality with Dr. Hays (U18 HS09204 and U18 HS016980, R. D. Hays, PI). Dr. Hays was supported by grants from the National Institute on Aging (AG020679-01) and the UCLA Center for Health Improvement in Minority Elderly/Resource Centers for Minority Aging Research, NIH/NIA/NCMHD (P30-AG-021684 and 2P30-AG-021684).