** Alternative Beliefs in Drug Users -------------------------------- *[Alt-B_DU]* ---------- The present project attempts to evaluate the association between the use of different drugs and alternative beliefs, as well as the assessment of facts in regard to how much value is put on scientific evidence versus intuition, and the belief that “facts” are politically constructed. To assess drug use, alternative beliefs and the evaluation of facts, we will employ quantitative measures, using a cross-sectional design, including a set number of validated scales in an online survey, which will be posted in several social media groups. We will test the following **primary hypotheses**: 1. Recent use of psychedelic drugs is expected to be associated with beliefs in alternative facts. 2. Recent users of psychedelic drugs are expected to trust their intuition for what is true. 3. Recent users of psychedelic drugs are expected to have a lower need for evidence when confirming facts. 4. Recent users of psychedelic drugs are expected to believe that facts are shaped by politics. In accordance with the above-mentioned hypotheses, the following outcomes will be collected: **Primary Outcomes (*hypothesis number*)** Frequency of psychedelic drug use (I, II, II, IV) - Total score on the Conspiracy Mentality Questionnaire (I) - Total score on factor 1 (Faith in Intuition for facts) on the Epistemic Belief Scale (II) - Total score on factor 2 (Need for Evidence) on the Epistemic Belief Scale (III) - Total score on factor 3 (Truth is political) on the Epistemic Belief Scale (IV) **Secondary hypotheses:** - Recent use of alcohol is expected to be negatively associated with beliefs in alternative facts. **Secondary Outcomes (*hypothesis number*)** - Recency of use of alcohol (II) Finally, an additional exploratory aim of the study is to investigate the mechanisms underlying the link between above mentioned associations and psychopathology, delusion-proneness, personality, childhood trauma and at what age drug use began.