WASHINGTON (AP) — Federal Reserve Chair Janet Yellen said Wednesday that the Fed has not made a decision yet on whether to raise a key interest rate in December.

It will depend on how the U.S. economy does between now and the Dec. 15-16 meeting, she told lawmakers during an appearance before the House Financial Services Committee.

Yellen described the economy as "performing well," with solid growth in domestic spending. At their meeting last week, policymakers believed that the threat of global headwinds had ebbed, Yellen said.

A December rate hike "would be a live possibility" if the economy continues to grow at a strong enough pace to keep adding jobs and push annual inflation toward the Fed's 2 percent target, Yellen said.

Yellen's comments came as part of her testimony on banking supervision and regulation.

In her opening remarks, Yellen said that the country's largest financial institutions are still falling short of managing the types of risks that led to the 2008 financial crisis. While Yellen acknowledged progress in making the financial system more resilient to shocks, she expressed concerns about the "substantial compliance and risk-management issues" at the institutions.

"Compliance breakdowns in recent years have undermined confidence in the (banks') risk management and controls and could have implications for financial stability, given the firms' size, complexity and interconnectedness," Yellen said.

The group includes the eight largest banks in the United States, a number of major foreign banks operating in the United States and several large institutions that have been judged systemically important.

Republicans on the House committee have been critical of many of the regulatory changes the Fed is undertaking to implement the 2010 Dodd-Frank Act.

Committee Chairman Jeb Hensarling, R-Texas, criticized the Fed for failing to provide enough details about the annual stress tests it conducts on the biggest banks to ensure they can withstand a severe financial downturn.

He told Yellen he had great concern about "how opaque and non-transparent" the stress tests are.

Yellen said that the Fed tries to provide banks detailed information about the methodologies it is using to structure the tests each year.

The Fed's overriding goal is to make sure that it has sufficiently addressed the kind of problems that lead to the 2008 crisis, the worst financial crisis in the United States in seven decades, Yellen said.

"We have made changes in our supervision that now allow us to supervise large financial institutions on a more coordinated, forward-looking basis," Yellen said.