A recent suicidal drive hypothesis posits that psychotic experiences (PEs) may serve to externalize internally generated and self-directed threat (i.e., self-injurious/suicidal thought/behavior [SITB]) in order to optimize survival. Preliminary investigations have attempted to demonstrate that such internal threat can both precede and inform PEs. To date findings derived from analyses of cross-sectional epidemiological data, national prospective cohort/service use data, and, prospective twin cohort data have indicated that SITB is indeed predictive of PEs. This study seeks to explore the hypothesis further.