We systematically assessed the effects of mattress firmness on sleep, pain, and daytime functioning, finding that mattress firmness has statistically significant effects on both sleep and daytime functioning and that individuals varied widely in the mattress that optimized their sleep. A...

The use of pre-paid monetary incentives in surveys of respondents with specialized knowledge, such as business executives and physicians, has been shown to help reduce overall survey administration costs. Current research suggests that by offering a cash incentive to respondents at the outset of...

To qualify for new federal funds intended to promote the widespread adoption and use of electronic health records, U.S. physician practices must meet the government’s "meaningful use" benchmarks. Our analysis indicates that among physicians who have electronic health records, between 75-85...