1 v. 24/08/2022 Further null evidence of extra-sensory-perception by using forced-choice experiments with unselected participants in an ordinary state of consciousness Patrizio Tressoldi 1 Studium Patavinum, Università di Padova, Italy Abstract The international multi-labs, Transparent Psi Project by Kekecs et al. (2022), did not confirm the results of one of the most known Bem’s experiments. In Bem’s experiment, unselected participants were able to predict correctly 53.1% of the time, the location of erotic images shown randomly beyond a left or a right curtain presented on a pc screen. The null evidence observed in the Transparent Psi Project, 49.89% of correct predictions, confirms that extra-sensory perception cannot or is extremely difficult to be detected, carrying out experiments with unselected participants performing tasks in an ordinary wake state of consciousness. Researchers of extra-sensory perception are advised to recruit skilled participants and request them to perform tasks in a modified state of consciousness as in ganzfeld field, dream, meditation, etc. Keywords: forced-choice; consciousness; extra-sensory-perception; unselected participants 1 Corresponding author: Patrizio Tressoldi; email: patrizio.tressoldi@unipd.it