Abstract
Many of the studies on synchronization of group consciousness using field random number generators (field RNGs) have focused on relatively short-term events. In the present study, the author executed a long-term measurement using two field RNGs at his laboratory and tried to detect weak periodic effects as background noise which is expected to be generated weekly at a nearby religious facility. The measurement was done for 22 months (from the end of January 2014 to the end of November 2015). The result showed a weak weekly effect; there was a significant difference between Saturday and Monday (p = 0.029). However, the average of the daily magnitude of this effect was small. Therefore it is considered that a 1000-day measurement is needed to detect this weak weekly effect.
