In this paper, we replicate the main results of previous research showing that the use of the yield spread in a probit model can predict recessions better than the Survey of Professional Forecasters. We investigate the robustness of their results in several ways: extending the sample to include the 2007-09 recession, changing the starting date of the sample, using rolling windows of data instead of just an expanding sample, and using alternative measures of the actual value of real output. Our results show that the Rudebusch-Williams findings are robust in all dimensions.