Given the importance of risk and time preferences for economics and other disciplines, we seek to examine the intertemporal stability of six related survey-based measures. Using a panel of subjects over three waves, between 2013 and 2015, we find aggregate and individual stability over the examined period for four of these measures (Patience, Risk, Risk Investment, and the Domain-Specific Risk-Taking scale) while only for Impulsiveness we observe significant patterns of instability, both individually and collectively. Our results contribute to the discussion on the wider adoption of survey-based measures, especially considering the ease with which such measures can be incorporated in large-scale surveys.