WASHINGTON (AP) -- A new government study says the average federal worker earns about 2 percent more than a private sector worker in a comparable profession, though the government's generous pension system means that overall compensation is significantly higher.

Once pension and health benefits are factored in, the average federal worker reaps 16 percent more in total compensation than do private sector workers.

The new Congressional Budget Office study says federal workers in lower-level jobs make more than private sector workers but that those with advanced degrees earn more outside government. Federal workers with a high school education or less earn about $4 more an hour than private sector employees.

The study comes as House GOP leaders have scheduled a vote this week to extend the current pay freeze on federal workers.