Knasmüller, F., Henze, D., Brunner, M., Nachtwey, O., Speck, S. and Kumkar, N.C. 2026. On ‘Doing Conspiracy Theory’. Introduction and Validation of the Conspiracy Practice Scale (CPS-6). Measurement Instruments for the Social Sciences. 8, (Jul. 2026), Article e19859. DOI:https://doi.org/10.5964/miss.19859.