Across the federal government, there's quite a bit of agency-by-agency variation in the number of workers who choose to participate in the Federal Employee Viewpoint Survey. But some agencies are finding that they can boost their response rates pretty significantly by offering incentives to complete the survey. Do those incentives unfairly bias the results? Jeff Neal says there's no evidence for that, and agencies should want to see the highest response rates they can get on the survey. Neal is a former chief human capital officer at the Department of Homeland Security. He wrote a column on the subject. He talked with Jared Serbu on Federal Drive with Tom Temin about the types of incentives agencies can and can't offer.