An Empirical Evaluation of a Set of Recommendations for Extrasensory Perception Experimental Research
José M. Pérez-Navarro
University of Greenwich, London, UK
Xana Martínez Guerra
University of Greenwich
One of the main criticisms of extrasensory perception (ESP) research is the lack of replication of positive results across laboratories. In this paper we report a study (N=100) where we tested a set of practices recommended by researchers in the area in order to develop a robust 'recipe' for ESP experimental research. In an experimental condition that included these practices we observed a 30% rate of correct guesses (z=0.82, p=0.21, one-tailed) compared to a 22% rate observed in a control condition (z=-0.49, p=0.31, one-tailed). It is discussed how results obtained so far, with free-response protocols, are not strong enough to fully satisfy mainstream science.