Though Federal Reserve Chairman Ben Bernanke has announced plans to commit another $600 billion to the banking system in an effort to jumpstart the economy, most Americans still aren’t confident the Fed can control inflation and keep interest rates down.

A new Rasmussen Reports national telephone survey finds that just 38% of Adults are at least somewhat confident the Federal Reserve Board will be able to keep inflation under control and interest rates down, with 10% who are Very Confident. Fifty-five percent (55%) do not share that confidence, including 17% whoa re Not At All Confident. (To see survey question wording, click here.)

In six surveys since October 2009, the percentage of those confident the Fed could keep interest rates down and control inflation has fallen in a narrow range of 37% to 41%.

Eighty-percent (80%) of adults nationwide are at least somewhat concerned about inflation, including 51% who are Very Concerned. Just 17% are not concerned about inflation, including just three percent (3%) who are Not At All Concerned. Those numbers, too, are largely unchanged over the past year.

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The survey of 1,000 Adults nationwide was conducted on December 6-7, 2010 by Rasmussen Reports. The margin of sampling error is +/- 3 percentage points with a 95% level of confidence. Field work for all Rasmussen Reports surveys is conducted by Pulse Opinion Research, LLC. See methodology.