Discovery Lab Answers

Dean I. Radin, PhD is a parapsychology researcher profiled on ESP-Nexus at https://esp-nexus.org/scientists/dean-i-radin/. Before reading the detail below, one essential qualification: the library’s share of the published literature on Radin’s work has not been measured. The studies summarized here reflect what the ESP-Nexus library currently holds — treat this as a summary of that holding rather than a settled account of his full output or the field’s findings on any given question.

The structured evidence covers 66 studies and 81 result rows drawn from multiple lines of research. Directions are mixed: the majority of rows point positive, but 9 result rows report null or below-chance outcomes, and the metrics across rows are not comparable to one another — standardized effect sizes, raw hit rates, z-scores, correlations, and p-values appear in the same table. No pooled “overall effect size” can responsibly be drawn across them. The chart below plots a subset of z/√N results against publication year with a fitted trend.

Experiments

Radin’s work spans several distinct research programs, each testing a different proposed psi mechanism.

Global Consciousness / New Year’s Eve studies. Radin (2025) analyzed data from the Global Consciousness Project (GCP) during New Year’s Eve celebrations, treating the stroke of midnight as a predicted moment of collective mental coherence. Six analytical methods were applied to the same random-event-generator time series: mean shift, chaotic attractor structure, sample independence, fractal dimensions, nonlinear dependencies, and a PCA composite. A corrigendum (2026) corrected a principal component analysis composite score from that paper. Radin (2024) and Radin (2023) contributed further analyses in this line, including deconvolution of GCP segments and multi-language text analyses.

Double-slit optical mind-matter interaction. Kauffman (2023) summarized a cumulative series of 30 experiments across five laboratories testing whether directed mental intention affects the interference pattern in a double-slit optical system — a line of research Radin has been centrally associated with.

Water pH “excess correlation.” Radin (2025) conducted a preliminary independent replication of a claimed “excess correlation” effect in pH between physically isolated beakers of water, using magnetic field stimulation.

Human intention / biophysical studies. Radin (2021) tested whether practitioners’ intention could influence distilled water, using an indirect measurement design. Radin (2022) examined human versus robot session comparisons using autonomic measures.

Precognition / card-bias studies. Radin (2023) reported a hidden-task slope experiment across card-bias levels with a very large trial count.

Collaborative work with Helané Wahbeh. Several studies in the evidence base are co-authored with Wahbeh and colleagues, covering telepathy, near-death experience correlates, remote viewing, and transformative experience.

Yoga and precognition. Alibalaei (2025) tested whether a 40-day yoga course affected precognition performance.

Methodology

Radin’s protocols vary considerably across research lines, reflecting the breadth of phenomena under study.

GCP analyses treat the existing network of random-event generators as a passive recorder; no participant is recruited, and the “stimulus” is a pre-scheduled global event (New Year’s midnight). Statistical rigor depends on pre-specification of the analysis window and choice of test statistic. The 2025 paper applied six independent analytical approaches to the same dataset — an exploratory multi-method design — using permutation testing with 5,000 permutations to assess significance, and a false-discovery-rate correction across the six-minute window around midnight. The 2026 corrigendum corrects a PCA composite figure while noting that the broader pattern of coherent deviation remained.

Double-slit studies use a physical apparatus in which participants attempt to concentrate attention toward or away from the optical path. Blinding is inherent in the physical setup; the outcome measure is the interference fringe visibility extracted from recorded images. The multi-lab summary (Kauffman 2023) aggregated results across 30 experiments in five independent laboratories.

Water pH studies placed beakers at 1-meter and 10-meter separations, used an Arduino circuit to energize magnetic halos, and included a non-stimulated control beaker between the local and remote beakers. Radin acknowledges that several parameters remain incompletely specified — field strength, magnetic sequence, water quantity and type, “space memory” effects, halo orientation relative to magnetic north, and geomagnetic field strength — as potential moderators.

Intention-on-water studies used an indirect measurement design with practitioner participants and distilled water as the target substance, separating the practitioner from the measurement to reduce experimenter effects.

Autonomic/physiological studies compared human and robot sessions to assess whether any signal was specific to human intention, using Stouffer Z combining across sessions.

Collaborations with Helané Wahbeh employed quick remote-viewing tasks, self-report surveys on near-death experiences, and telepathy tasks in online or workshop formats with participant samples ranging from dozens to hundreds.

Data

The table below organizes the key quantitative results from the structured evidence. Because the metrics are not comparable across rows, they are presented as reported; no pooled figure is offered.

Several points the evidence requires surfacing honestly:

• The Alibalaei (2025) pre/post yoga precognition result is null (p = .783, d = −0.027).
• The Wahbeh (2021) quick remote-viewing task is null overall.
• Wahbeh (2022) shows a below-chance result (Hedges’ g = −0.16, hit rate = 0.19) on the extended perception task.
• Radin (2023) experiment 1 returned a below-chance result (z = −3.0, p = 0.003) in a single-participant concentrated-attention study.
• Effect sizes where they can be extracted are generally very small (Cohen’s d around −0.03 in the 2026 study), even where p-values are low, largely because of extremely large trial counts.

Skeptical critiques

The sources retrieved for this question do not include named published criticisms of Radin’s specific experimental work with a citable critic and year meeting the attribution standard this section requires. Several methodological cautions are, however, documented in Radin’s own papers and are worth noting as analytic limitations he records:

Radin (2025) explicitly lists multiple incompletely specified parameters in the water pH replication — halo field strength, magnetic sequence, water quantity and type, space-memory effects, halo orientation relative to magnetic north, and geomagnetic field strength — and acknowledges these as potential moderators that leave the excess-correlation effect’s boundary conditions unclear. This is an internal acknowledgment that the replication is preliminary rather than confirmatory.

The GCP analyses apply six analytical methods to the same dataset, raising questions about multiple comparisons that the paper addresses via false-discovery-rate correction and permutation testing, but the exploratory nature of the multi-method design is noted.

The null results in the evidence base — the yoga/precognition study, the quick remote-viewing task, and the below-chance extended perception result — represent within-program variation that the evidence record carries without resolution.