with regard to parapsychology experiments, the discovery that an involved party's calls or guesses are more correct for one group of targets in an experiment than another one.
PREFERENTIAL EFFECT: "The preferential effect skewed the results, making them invalid."
Cite this page: N., Pam M.S., "PREFERENTIAL EFFECT," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/preferential-effect/ (accessed January 18, 2021).
