Tuesday, September 18, 2007

Douglas M. Stokes’ Consciousness and the Physical World now available online

Douglas Stokes’ book Consciousness and the Physical World is now available as multiple Microsoft Word doc files at--

http://noosphere.princeton.edu/papers/docs/stokes/


A paragraph from his Introduction reads:

        “This book retraces many of the themes of my earlier book The Nature of Mind (Stokes, 1997) and in places may be regarded as an updating of that book. It also contains a comprehensive updating of my chapter on theoretical parapsychology in Stanley Krippner’s Advances in Parapsychological Research series (Stokes, 1987). However, the central focus in the present book is much different from that in these two earlier works, as are the ultimate conclusions drawn.” (p. iii)

Stokes has been a significant commentator on methodological issues in parapsychology. He has published in parapsychology journals as well as in the Skeptical Inquirer.

Monday, September 17, 2007

Response to Radin: The “Significant” Correlation Matrix (PA 1993)

Dean Radin has responded to my comments regarding his correlation matrix (this blog August 5, 2007), in his blog entry titled: “Trickster, or failure of imagination?” (August 14, 2007).

Radin took me to task for not mentioning the control matrix presented in his paper. I did not mention it simply because it did not answer the key question (i.e., did the experimental matrix have a significant, non-artifactual number [Ns] of correlations associated with p < .05?).

In essence, Radin conducted a 1-trial Monte Carlo simulation to assess the effect of dependence among elements in the experimental matrix. But a 1-trial simulation cannot adequately characterize the distribution of Ns or determine how much the significance level was affected by the dependence artifact. Radin’s control value was lower than the experimental value, but one cannot therefore conclude that the experimental value was significantly greater than chance, let alone defend the claim of p = .0004 (or p = .000779).

Had Radin conducted a more usual simulation, i.e., with a large number of trials, perhaps he could have legitimately defended the reported p value, or at least the claim of significance. But he didn’t do that.

Radin’s response to me indicates that he still considers the 1-trial control simulation to be adequate. Readers with some familiarity with statistics are now in a better position to assess his methods.


References

Radin, Dean I. (1993). Environmental modulation and statistical equilibrium in mind-matter interaction. In Marilyn J. Schlitz (program chair), The Parapsychological Association 36th Annual Convention: Proceedings of Presented Papers (pages 157-176). The Parapsychological Association.

Radin, Dean. (August 14, 2007). Trickster, or failure of imagination? [blog post]. Available at: http://deanradin.blogspot.com/2007/08/trickster-or-failure-of-imagination.html. Accessed September 14, 2007.

Monday, August 13, 2007

A Salary in Parapsychology: Patrice Keane (ASPR)

The 2005 federal tax return of the American Society for Psychical Research (ASPR) was signed by its president, Nancy Sondow, on November 2, 2006. Page 5 of the return lists the compensation for officers, directors, trustees, and key employees. That for Patrice Keane, ASPR Executive Director, is given below.

Commentary

Years ago, the ASPR was one of the venerable institutions of psychical research. It was founded in 1885 through the efforts of William James, among others. In 1889 it became part of the Society for Psychical Research (British), but in 1906 it was reconstituted (Berger 1985). It regularly published the Journal of the American Society for Psychical Research from 1907 until about 1997, when its appearance became intermittent. In July 2007, the ASPR mailed out copies of its most recent issue—dated January-April 2004.

The Society’s website (www.aspr.com) currently includes three sample articles from the Journal. The most recent is from 1976—31 years ago. I could find no mention of any ASPR-sponsored lectures or conferences on the website. It is unclear what services the ASPR actually provides.

Its tax returns for the last several years list income from “membership dues and assessments.” The website indicates that regular membership is $70. Membership for seniors (over 65) is $45. Assuming that half of the members are seniors, the average dues are $57.50. The table below gives the estimated number of members based on these figures.

In 1989 total paid circulation of the Journal was 1747 (McCormick, 1989).

I briefly mentioned Ms. Keane in my book chapter “Anti-Structure and the History of Psychical Research” (Hansen, 2001, p. 197). She has provided a striking demonstration of the anti-structural effect of the paranormal on institutions.

In anthropological terms, anti-structure is a synonym of liminality. It is characteristic of the paranormal, and anti-structure helps explain why institutions in paranormal fields are exceptionally vulnerable to instability and fractionation. It also illuminates the paranormal’s marginality, which has been observed over thousands of years.

Parapsychologists resist the idea that their field is inherently marginal and unstable. But the entire history of parapsychology demonstrates the fact. The current condition of the ASPR is an example—and entirely consistent with trickster theory.


References

Berger, Arthur S. (1985). The Early History of the ASPR: Origins to 1907. Journal of the American Society for Psychical Research. Vol. 79, No. 1, pp. 39-60.

Hansen, George P. (2001). The Trickster and the Paranormal. Philadelphia, PA: Xlibris Corporation.

McCormick, Donna L. (1989). U.S. Postal Service Statement of Ownership, Management and Circulation. Journal of the American Society for Psychical Research. Vol. 83, No. 3, p. 287.

Sunday, August 5, 2007

Dean Radin’s Statistics: The “Significant” Correlation Matrix (PA 1993)

In 1993 Dean Radin served as president of the Parapsychological Association (PA), the professional association of parapsychologists. By that time he had been working in the field for over a decade. He had held positions doing psi research at Bell Laboratories, Princeton University, SRI International, and the University of Edinburgh. This impressive set of credentials may have led some to feel confident in his experimental methods and statistical analyses.

At the 1993 PA convention held in Toronto, Radin presented a paper titled: “Environmental Modulation and Statistical Equilibrium in Mind-Matter Interaction.” It reported a study of a human’s mental influence on a Geiger counter.

Method

Four Geiger counters were connected to a computer that recorded the radiation counts. The human subject attempted to influence one of the Geiger counters. The 65 test sessions each had two conditions (real-time and pre-recorded). For each condition, the computer randomly designated 25 influence periods and 75 control periods. Results from influence and control periods were compared for each Geiger counter, for each condition. Two measures were computed (effect size and F-score). Four Geiger counters, two conditions with two measures each, resulted in 4 × 2 × 2 = 16 outcome measures for each session.

In addition, 33 environmental variables were recorded for each test session (e.g., humidity, barometric pressure, time of day, local magnetic field, precipitation, sunspot number, background xray).

Statistics

Correlation coefficients were calculated for each of the 16 outcome measures with each of the 33 environmental variables, which resulted in a total of 16 × 33 = 528 correlations.

Radin reported that the 16 × 33 matrix produced 44 correlations that were associated with p < .05. He then used the binomial probability distribution to compute the probability of obtaining that many, or (presumably) more, correlations associated with p < .05.

He reported a value of p = .0004.

I have been unable to reproduce this number; three online binomial calculators have all given me p = .000779. I did check the general accuracy of these online calculators by comparing their results with the Tables of the Cumulative Binomial Probability Distribution (1955) for similar values with N = 550 and p = .05. In any event, Radin’s reported result is statistically significant.

However, the binomial distribution assumes independence for each of the measurements. But the correlations were clearly not independent. For instance, the environmental variables included background X-ray flux and log of background X-ray flux, humidity and precipitation, sunspot number and sunspot number for the day before.

Implications

The program chair for the 1993 conference was Marilyn Schlitz, who is now Vice President for Research and Education at the Institute of Noetic Sciences, where Radin is Senior Scientist. Schlitz was responsible for seeing that the papers were adequately reviewed. She has been involved in parapsychology since 1979.

Radin has been doing statistically based parapsychology research since 1981.

Readers who have some familiarity with statistics may wish to ponder the implications.


References

Radin, Dean I. (1993). Environmental modulation and statistical equilibrium in mind-matter interaction. In Marilyn J. Schlitz (program chair), The Parapsychological Association 36th Annual Convention: Proceedings of Presented Papers (pages 157-176). The Parapsychological Association.

Staff of the Computation Laboratory. (1955). Tables of the Cumulative Binomial Distribution. Cambridge, MA: Harvard University Press.

Wednesday, July 25, 2007

Zetetic Scholar Issue Nos. 1-5 Now Online

PDF files of Zetetic Scholar issue numbers 1-5 are now available online at:

http://tricksterbook.com/truzzi/ZeteticScholars.html


Background

In 1976 the Committee for the Scientific Investigation of Claims of the Paranormal (CSICOP) was founded. [Earlier this year it changed it’s name to the Committee for Skeptical Inquiry (CSI).] Marcello Truzzi was one of the founders of CSICOP, but he left the organization in 1977.

From 1978 to 1987 he edited Zetetic Scholar, which carried many articles by both proponents and critics of paranormal claims. The journal fostered extensive dialogue and debate. It also published several exposés.

Thursday, July 19, 2007

Dean Radin’s Statistics: Entangled Minds, page 120

Dean Radin discusses a meta-analysis of 88 ganzfeld experiments in his book Entangled Minds: Extrasensory Experiences in a Quantum Reality (Paraview, 2006). Figure 6-6 on page 120 has a graph of the results.

The three-sentence caption is odd. The first sentence seems direct and plausible: “Cumulative average hit rate in the ganzfeld experiments, from 1974 through 2004, with one standard error bar.”

But the third sentence reads: “Each dot represents an experiment and the dates on the x-axis indicate the average year of study publication.” Can these two sentences be reconciled? It seems unlikely that each dot represents one experiment (the variance of the hit rates would be remarkably small). Why would the average year of publication be plotted on the x-axis? What range of years were used for each average?

I perused the book but could find no citation that might lead me to more description.

Before one relies upon Dr. Radin’s claims here, one may wish to seek further details of the meta-analysis.

Wednesday, July 11, 2007

Nobel Laureates Invited to Parapsychology Conference

Nobel laureates have reportedly been invited to a conference on parapsychology to be held at the University of British Columbia in Vancouver. The event, “A Meeting of Minds,” is to take place on July 15-16, 2007. The co-hosts are Jonathan Schooler and Dean Radin.

Invitees

Nobelists Kary Mullis and Brian Josephson have been mentioned as likely attendees. Elizabeth Loftus, member of the National Academy of Sciences, has confirmed her intention to attend. Richard J. Davidson, a neuroscientist at the University of Wisconsin who was included in Time magazine’s list of “the world’s most influential people” (see May 8, 2006 issue), was expected, but now likely will be unable to take part.

Some of the other invitees are said to be: Harvard psychologist, Daniel Gilbert; Duke professor of philosophy and neurobiology, Owen Flanagan; Princeton psychologist, Jonathan Cohen; Morris Freedman MD of the University of Toronto; Paul Rozin of the University of Pennsylvania Department of Psychology; and Ken Paller, psychologist from Northwestern University.

Paul Ekman, an expert on deception, reportedly served on the advisory committee, and Paul Werbos of the National Science Foundation was also mentioned in this capacity.

This is an “invitation-only” conference, apparently restricted to high-status scientists and selected “old guard” parapsychologists. A few academic members of CSI (nee CSICOP [Committee for the Scientific Investigation of Claims of the Paranormal] ) are also anticipated to be present.

Reportedly, over 80% of the invited participants are aging white males.

Funding

There is some money behind this meeting, and the expenses of the invitees are to be covered. Financial backing comes from several private donors, the Bial Foundation, the Samueli Institute, the Fetzer Institute, and the University of British Columbia.

Purpose

The expressed purpose of the conference is to explore why academia so actively avoids the paranormal despite the wide interest by the general public.

To acquaint the visiting scientists with the field and to facilitate discussion, parapsychologists will present evidence for the existence of ESP and review theoretical problems of the phenomena.

Commentary

Will this effort succeed? Let’s remember, it’s been 125 years since the founding of the SPR (Society for Psychical Research). Parapsychologists have published their work continuously since that founding. Innumerable scientists have learned of the research through books, journal articles, and conferences. Yet the field is now no closer to respectability than it was during the 19th century. Arguably, it is further from it.

Yet still today, many parapsychologists seem to believe that if they present their evidence objectively to other scientists, the broader scientific community will begin to accept them as legitimate members. Traditional scientific funding sources will welcome proposals, major journals will seek papers on psi, and conferences will regularly include symposia on paranormal topics. But such hope is forlorn.

Parapsychologists do not seem to realize that their field is inherently marginal. Psi phenomena are liminal, and they carry a taint, a stigma. This is nothing new. The stigma did not develop with the rise of modern science, nor with advent of the Enlightenment, nor with the Reformation. The stigma has been seen for thousands of years in hundreds of cultures. Attempts to directly engage psi has consequences—one being the continuing marginality of psychical research.

Until parapsychologists recognize this state of affairs, they will remain bewildered—and bitterly disappointed.

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The information for this post came from a source who wishes to remain anonymous and from a short notice in the magazine Shift: At the Frontiers of Consciousness, No. 15, June-August 2007, page 40.