Tag: Differential Effect

November 26, 2025 / Mohammed looti

DIFFERENTIAL EFFECT

Introduction to the Differential Effect The Differential Effect constitutes a core concept within the rigorous statistical framework applied to parapsychological research, specifically addressing instances where participants achieve scoring rates significantly exceeding what would be expected purely by chance. This phenomenon is not merely defined by the presence of above-chance scores in general, but rather focuses […]

November 3, 2025 / Mohammed looti

SHEEP-GOAT EFFECT

SHEEP-GOAT EFFECT The Sheep-Goat Effect is a widely recognized phenomenon within the field of parapsychology, describing a correlation between a participant’s belief in the existence of extrasensory perception (ESP) or psychokinesis (PK) and their subsequent performance in tests designed to measure these abilities. This terminology neatly divides experimental subjects into two distinct groups: the “sheep,” […]