F. Knasmüller, D. Henze, M. Brunner, O. Nachtwey, S. Speck, and N. C. Kumkar, “On ‘Doing Conspiracy Theory’. Introduction and Validation of the Conspiracy Practice Scale (CPS-6)”, Meas Instrum Soc Sci, vol. 8, p. Article e19859, Jul. 2026.