Joe Simmons is an associate professor at the Wharton School of the University of Pennsylvania. He has two primary areas of research: Exploring the psychology of judgment and decision-making, and identifying easy-to-adopt research practices that improve the integrity of published findings. Abstract: P-hacking is the practice of conducting many analyses on the same dataset until one achieves a reportable, statistically significant result (p < .05). P-hacking can lead researchers to believe in and publish findings that are false (i.e., not replicable) and it is likely the major reason why, in many fields (e.g., psychology, medicine), too many published findings do not replicate. Since p-hacking is so bad, we should work hard to stop doing it. This talk will discuss how a commitment to stop p-hacking affects how research is done and judged.