Noetic experiences—inner wisdom or direct knowing beyond ordinary senses—are common worldwide, yet no tool existed to measure them. Through three studies with 521 participants, researchers developed and refined the Noetic Signature Inventory (NSI), a 44-item questionnaire capturing 12 distinct facets of noetic experience: Inner Knowing, Embodied Sensations, Visualizing to Access or Affect, Inner Knowing Through Touch, Healing, Knowing the Future, Physical Sensations from Other People, Knowing Yourself, Knowing Others' Minds, Apparent Communication with Non-physical Beings, Knowing Through Dreams, and Inner Voice. The NSI showed good internal consistency, convergent and divergent validity, and test-retest reliability, providing a standardized way to study individual differences in noetic experiences.
Noetic experiences—inner wisdom, direct knowing, or intuition—are often kept private due to cultural taboos, despite growing evidence they may be real. An online survey of 521 English-speaking adults worldwide collected demographic data and four open-ended questions about such experiences. Thematic analysis identified five main themes: Ways of Engagement, Ways of Knowing, Types of Information, Ways of Affecting, and Ways of Expressing. Common codes included sharing with others, impacting decision-making, intuition or just knowing, meditation or hypnosis, inner visions, setting intentions, healing others, writing for self, and inner voice. Future research aims to explore these themes and develop standardized evaluation methods to inform curricula and therapies.