**Reinhardt, N., & Reinhard, M.-A. (2023). Honesty–humility negatively correlates with dishonesty in romantic relationships. Journal of Personality and Social Psychology. Advance online publication. https://doi.org/10.1037/pspp0000456** **AsPredicted links for all studies reported in the main manuscript:** Study 1 - 3: https://aspredicted.org/ub6hm.pdf Study 4: https://aspredicted.org/iy853.pdf Study 5: https://aspredicted.org/8eg2q.pdf Study 6: https://aspredicted.org/f9zw4.pdf Study 7: https://aspredicted.org/us6ff.pdf Study 8: https://aspredicted.org/bv3bh.pdf Study 9: https://aspredicted.org/sq64h.pdf Study 10: https://aspredicted.org/7fi6r.pdf Study 11: https://aspredicted.org/hd8ei.pdf **AsPredicted links for all pretests reported in the document "Deception Paradigms":** Pretest 1: https://aspredicted.org/6gx3d.pdf Pretest 2: https://aspredicted.org/kh7kg.pdf Pretest 3: https://aspredicted.org/2bh2b.pdf Pretest 4: https://aspredicted.org/zy9s2.pdf Study I: https://aspredicted.org/fg6yr.pdf Study II: https://aspredicted.org/e7k3x.pdf Study III: https://aspredicted.org/x2wg2.pdf Study IV: https://aspredicted.org/fh6jk.pdf