Who conducted this survey?

Slightly more than one-fourth of federal employees think their managers adequately deal with low-performing workers, and fewer than half say their agencies properly recognize high achievers, according to a comprehensive survey of the federal workforce released yesterday.
     The Federal Human Capital Survey, a poll of 147,914 workers conducted by the Office of Personnel Management, also found that only 42 percent of employees said awards are tied to how well workers do their jobs, and about a third said promotions are based on merit.