Stage 1 Registered Report: Testing mediumship accuracy with a triple-blind protocol

Abstract

Even if mediumship is a practice that probably originated at the outset of human history and is embedded in many cultural and religious traditions, scientific investigations into mediumship are quite recent. In this study, we aim to investigate if self-defined mediums can retrieve information about specific deceased persons in an unconventional way, that is, without retrieving the information from the parents or friends of the deceased person or by other conventional means. To our knowledge, this is the first registered report related to this phenomenon. Our experimental design will be triple-blinded: the mediums and their interviewer will only know the first name of the deceased person and of the requesting person. The parents or the close friends of the deceased person will not interact in any way with the medium. Furthermore, they will be blind about which of two lists of information (readings) paired with deceased persons of the same gender is related to their parents or friend. Accuracy of information will be analysed by three criteria: (1) percentage of correct identification of the readings related to the requested person; (2) comparison of the global scores (on a scale 1 to 6) assigned to the intended readings with that of control readings; and (3) comparison of the difference between the percentage of correct minus incorrect information identified in the intended readings with that of the control readings.