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Efficacy of prayer - Wikipedia
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Efficacy of prayer

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The efficacy of prayer has been studied since at least 1872, generally through experiments to determine whether prayer or intercessory prayer has a measurable effect on the health of the person for whom prayer is offered. A study in 2006 indicates that intercessory prayer in cardiac bypass patients had no discernible effects.[1]

A child praying before lunch in the United States, during the Great Depression in 1936

While some religious groups argue that the power of prayer is obvious, others question whether it is possible to measure its effect.[2][3][4] Dr. Fred Rosner, an authority on Jewish medical ethics, has expressed doubt that prayer could ever be subject to empirical analysis.[5] Basic philosophical questions bear upon the question of the efficacy of prayer – for example, whether statistical inference and falsifiability are sufficient to "prove" or to "disprove" anything, and whether the topic is even within the realm of science.[6]

According to The Washington Post, "...prayer is the most common complement to mainstream medicine, far outpacing acupuncture, herbs, vitamins and other alternative remedies." In comparison to other fields that have been scientifically studied, carefully monitored studies of prayer are relatively few. The field remains tiny, with about $5 million spent worldwide on such research each year.[7]

Studies of intercessory prayer

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First person studies

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A Bolivian aymara woman praying

Studies can verify that those who pray are affected by the experience, including certain physiological outcomes. An example of a study on meditative prayer was the Bernardi study in the British Medical Journal in 2001. It reported that by praying the rosary or reciting yoga mantras at specific rates, baroreflex sensitivity increased significantly in cardiovascular patients.[8]

A study published in 2008 used Eysenck's dimensional model of personality based on neuroticism and psychoticism to assess the mental health of high school students based on their self-reported frequency of prayer. For students both in Catholic and Protestant schools, higher levels of prayer were associated with better mental health as measured by lower psychoticism scores. However, among pupils attending Catholic schools, higher levels of prayer were also associated with higher neuroticism scores.[9]

 
Person in wheelchair seeking a miracle at Lourdes, France, where healing miracles had been reported at Our Lady of Lourdes.

It has also been suggested that if a person knows that he or she is being prayed for it can be uplifting and increase morale, thus aiding recovery. (See Subject-expectancy effect.) Studies have suggested that prayer can reduce psychological stress, regardless of the god or gods a person prays to, a result that is consistent with a variety of hypotheses as to what may cause such an effect. According to a study by CentraState Healthcare System, "the psychological benefits of prayer may help reduce stress and anxiety, promote a more positive outlook, and strengthen the will to live."[10] Other practices such as yoga, tai chi, and meditation may also have a positive impact on physical and psychological health.[citation needed]

A 2001 study by Meisenhelder and Chandler analyzed data obtained from 1,421 Presbyterian pastors surveyed by mail and found that their self-reported frequency of prayer was well-correlated with their self-perception of health and vitality.[11] This research methodology has inherent problems with self-selection, selection bias, and residual confounding, and the authors admitted that the direction of perceived prayer and health relationships "remains inconclusive due to the limits of the correlational research design".

Third party studies

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Various controlled studies have addressed the topic of the efficacy of prayer at least since Francis Galton in 1872,[12] which spawned an entire series of commentary-debates that lasted for several years.[13] Carefully monitored studies of prayer are relatively scarce with $5 million spent worldwide on such research each year.[7] The largest study, from the 2006 STEP project, found no significant differences in patients recovering from heart surgery whether the patients were prayed for or not.[1][5][14]

The third party studies reported either null results, correlated results, or contradictory results in which beneficiaries of prayer had worsened health outcomes. For instance, a meta-analysis of several studies related to distant intercessory healing published in the Annals of Internal Medicine in 2000 looked at 2774 patients in 23 studies, and found that 13 studies showed statistically significant positive results, 9 studies showed no effect, and 1 study showed a negative result.[15]

A 2003 levels of evidence review found evidence for the hypothesis that "Being prayed for improves physical recovery from acute illness".[16] It concluded that although "a number of studies" have tested this hypothesis, "only three have sufficient rigor for review here" (Byrd 1988, Harris et al. 1999, and Sicher et al. 1998). In all three, "the strongest findings were for the variables that were evaluated most subjectively", raising concerns about the possible inadvertent unmasking of the outcomes' assessors. Other meta-studies of the broader literature have been performed showing evidence only for no effect or a potentially small effect. For instance, a 2006 meta analysis on 14 studies concluded that there is "no discernible effect" while a 2007 systemic review of intercessory prayer reported inconclusive results, noting that 7 of 17 studies had "small, but significant, effect sizes" but the review noted that the three most methodologically rigorous studies failed to produce significant findings.[17][18]

Belief and skepticism

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Medical views

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Most[a] scientists dismiss "faith healing" practitioners.[19][20][6][21] Believers assert that faith healing makes no scientific claims and thus should be treated as a matter of faith that is not testable by science.[22] Critics reply that claims of medical cures should be tested scientifically because, although faith in the supernatural is not in itself usually considered to be the purview of science,[23][24][b] claims of reproducible effects are nevertheless subject to scientific investigation.[20][22]

Scientists and doctors generally find that faith healing lacks biological plausibility or epistemic warrant,[6]: 30–31  which is one of the criteria used to judge whether clinical research is ethical and financially justified.[26] A Cochrane review of intercessory prayer found "although some of the results of individual studies suggest a positive effect of intercessory prayer, the majority do not".[27] The authors concluded: "We are not convinced that further trials of this intervention should be undertaken and would prefer to see any resources available for such a trial used to investigate other questions in health care".[27]

An article in the Medical Journal of Australia says that "One common criticism of prayer research is that prayer has become a popular therapeutic method for which there is no known plausible mechanism."[28]

Medical professionals are skeptical of new claims by studies until they have been experimentally reproduced and corroborated. For instance, a 2001 study by researchers associated with Columbia University has been associated with controversy, following claims of success in the popular media.[29][30]

Although different medical studies have been at odds with one another, physicians have not stopped studying prayer. This may be partly because prayer is increasingly used as a coping mechanism for patients.[31]

Skepticism on scope of prayer

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A family at prayer

In a debate/interview in Newsweek with Christian evangelical Rick Warren, atheist Sam Harris commented that most lay perceptions of the efficacy of prayer (personal impressions as opposed to empirical studies) were related to sampling error because "we know that humans have a terrible sense of probability." That is, humans are more inclined to recognize confirmations of their faith than they are to recognize disconfirmations.

Harris also criticized existing empirical studies for limiting themselves to prayers for relatively unmiraculous events, such as recovery from heart surgery. He suggested a simple experiment to settle the issue:[32]

Get a billion Christians to pray for a single amputee. Get them to pray that God regrow that missing limb. This happens to salamanders every day, presumably without prayer; this is within the capacity of God. I find it interesting that people of faith only tend to pray for conditions that are self-limiting.

Religious and philosophical issues

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Praying to the Madonna of the Rosary, by Caravaggio, 1606–1607
See also: Relationship between religion and science

Religious and philosophical objections to the very study of prayer's efficacy exist. Some interpret Deuteronomy (6:16 "You shall not put the Lord your God to the test"[33]) to mean that prayer cannot, or should not, be examined.

The religious viewpoint objects to the claim that prayer is susceptible to experimental designs or statistical analysis, and other assumptions in many experiments, e.g. that a thousand prayers are statistically different from one. The objections also include the complaint that religion generally deals with unique, uncontrollable events; statistics, and science in general, deal with recurring phenomena which are possible to sample or control and are susceptible to general laws.

Religious objections also include the complaint that as prayer starts to be measured, it is no longer real prayer once it gets involved in an experiment and that the concept of conducting prayer experiments reflects a misunderstanding of the purpose of prayer. The 2006 STEP experiment indicated that some of the intercessors who took part in it complained about the scripted nature of the prayers that were imposed to them,[34] saying that this is not the way they usually conduct prayer:

Prior to the start of this study, intercessors reported that they usually receive information about the patient's age, gender and progress reports on their medical condition; converse with family members or the patient (not by fax from a third party); use individualized prayers of their own choosing; and pray for a variable time period based on patient or family request.

With respect to expectation of a response to prayer, the 18th-century philosopher William Paley wrote:[35]

To pray for particular favors is to dictate to Divine Wisdom, and savors of presumption; and to intercede for other individuals or for nations, is to presume that their happiness depends upon our choice, and that the prosperity of communities hangs upon our interest.

During the 20th century, philosopher Bertrand Russell believed that religion and science "have long been at war, claiming for themselves the same territory, ideas and allegiances". He also believed that the war had been decisively won by science.[36] Almost 40 years earlier, a 22-year-old Russell also wrote: "For although I had long ceased to believe in the efficacy of prayer, I was so lonely and so in need of some supporter such as the Christian God, that I took to saying prayers again when I ceased to believe in their efficacy."[37]

The 21st-century evolutionary biologist Richard Dawkins, describing how Richard Swinburne explained away the STEP experiment's negative results "on the grounds that God answers prayers only if they are offered up for good reasons",[38] finds one predictable result of prayer:[39]

Other theologians joined NOMA-inspired sceptics in contending that studying prayer in this way is a waste of money because supernatural influences are by definition beyond the reach of science. But as the Templeton Foundation correctly recognized when it financed the study, the alleged power of intercessory prayer is at least in principle within the reach of science. A double-blind experiment can be done and was done. It could have yielded a positive result. And if it had, can you imagine that a single religious apologist would have dismissed it on the grounds that scientific research has no bearing on religious matters? Of course not.

See also

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Notes

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  1. ^ "Despite the lack of generally accepted demarcation criteria, we find remarkable agreement among virtually all philosophers and scientists that fields like astrology, creationism, homeopathy, dowsing, psychokinesis, faith healing, clairvoyance, or ufology are either pseudosciences or at least lack the epistemic warrant to be taken seriously." Martin Mahner, 2013.[6]: 30–31 
  2. ^ "The 'faith' in faith healing refers to an irrational belief, unsupported by evidence, that mysterious supernatural powers can eradicate disease. Science deals with evidence, not faith." Bruce Flamm, 2004.[25]

References

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  1. ^ a b Carey, Benedict (31 March 2006). "Long-Awaited Medical Study Questions the Power of Prayer". The New York Times. Archived from the original on 12 March 2013.
  2. ^ Intercessory Prayer: Modern Theology, Biblical Teaching And Philosophical Thought by Philip Clements-Jewery 2005 ISBN 0-7546-3828-6 page 24-27
  3. ^ The works of Dr. John Tillotson, Volume 10 by John Tillotson, Thomas Birch 2009 ISBN 0-217-76300-6 pages 99–105
  4. ^ Talking to God: the theology of prayer by Wayne R. Spear 2002 ISBN 1-884527-13-2 pages 58–61
  5. ^ a b Realized religion: research on the relationship between religion and health Theodore J. Chamberlain, Christopher Alan Hall 2007 ISBN 1-890151-53-X pages 33–35
  6. ^ a b c d Mahner, Martin (2013). Pigliucci, Massimo; Boudry, Maarten (eds.). Philosophy of pseudoscience reconsidering the demarcation problem (Online-Ausg. ed.). Chicago: University of Chicago Press. p. 30. ISBN 9780226051826. Retrieved 18 April 2018.
  7. ^ a b Boorstein, Michelle (6 December 2008). "Study of Health and Religiosity Growing Despite Criticism". Retrieved 18 November 2016 – via washingtonpost.com. While the field remains tiny – about $5 million is spent worldwide on such research, experts estimate – both sides view the stakes as huge.
  8. ^ Bernardi L, Sleight P, Bandinelli G, et al. (2001). "Effect of rosary prayer and yoga mantras on autonomic cardiovascular rhythms: comparative study". BMJ. 323 (7327): 1446–1449. doi:10.1136/bmj.323.7327.1446. PMC 61046. PMID 11751348.
  9. ^ Francis, Leslie; Robbins, Mandy; Lewis, Christopher Alan; Barnes, L. Philip (2008). "Prayer and psychological health: A study among sixth-form pupils attending Catholic and Protestant schools in Northern Ireland" (PDF). Mental Health, Religion & Culture. 11 (1): 85–92. doi:10.1080/13674670701709055. S2CID 56432949.
  10. ^ Mind and Spirit Archived 2009-02-01 at the Wayback Machine from the Health Library section of CentraState Healthcare System. Accessed May 18, 2006.
  11. ^ Meisenhelder, Janice Bell; Chandler, Emily N. (2001). "Frequency of Prayer and Functional Health in Presbyterian Pastors". Journal for the Scientific Study of Religion. 40 (2): 323–330. doi:10.1111/0021-8294.00059.
  12. ^ Galton, Francis. Statistical Inquiries into the Efficacy of Prayer. The Fortnightly Review 1872;12:125–35
  13. ^ Tyndall, John; Galton, Sir Francis; Littledale, Richard Frederick; McCosh, James; Means, John O. (John Oliver); Congregational Publishing Society (1876). The Prayer-gauge debate. University of Michigan. Boston, Congregational Publishing Society.
  14. ^ Benson, H., Dusek, J. A., Sherwood, J. B., Lam, P., Bethea, C. F., Carpenter, W., Levitsky, S., Hill, P. C., Clem, D. W., Jain, M. K., Drumel, D., Kopecky, S. L., Mueller, P. S., Marek, D., Rollins, S., & Hibberd, P. L. (2006). Study of the therapeutic effects of intercessory prayer (STEP) in cardiac bypass patients: A Multicenter randomized trial of uncertainty and certainty of receiving intercessory prayer. American Heart Journal, 151(4), 934–942. https://doi.org/10.1016/j.ahj.2005.05.028
  15. ^ John A. Astin, et al. The Efficacy of "Distant Healing" A Systematic Review of Randomized Trials Annals of Internal Medicine June 6, 2000 vol. 132 no. 11 903–910 [1]
  16. ^ Powell LH, Shahabi L, Thoresen CE (January 2003). "Religion and spirituality. Linkages to physical health". The American Psychologist. 58 (1): 36–52. CiteSeerX 10.1.1.404.4403. doi:10.1037/0003-066X.58.1.36. PMID 12674817.
  17. ^ Hodge, David R. (2007). "A Systematic Review of the Empirical Literature on Intercessory Prayer". Research on Social Work Practice. 17 (2): 174–187. doi:10.1177/1049731506296170. S2CID 43547918.
  18. ^ Masters, K.; Spielmans, G.; Goodson, J. (Aug 2006). "Are there demonstrable effects of distant intercessory prayer? A meta-analytic review". Annals of Behavioral Medicine. 32 (1): 21–26. CiteSeerX 10.1.1.599.3036. doi:10.1207/s15324796abm3201_3. PMID 16827626. S2CID 3672308.
  19. ^ Erzinclioglu, Zakaria (2000). Every Contact Leaves a Trace: Scientific Detection in the Twentieth Century. Carlton Books. p. 60. ISBN 9781842221617. For example, most scientists dismiss the notion of faith-healing, a phenomenon for which there is a certain amount of evidence.
  20. ^ a b Hassani, Sadri (2010). From Atoms to Galaxies: A Conceptual Physics Approach to Scientific Awareness. CRC Press. p. 641. ISBN 9781439882849. Retrieved 18 April 2018. There are also activities that, although not classified (or claimed) as science, have implications that trespass into the scientific territories. Examples of this category of activities are the claim that we have been visited by aliens riding unidentified flying objects, all psychic phenomena, and faith healing. We study the nature of all these activities under the general heading of pseudoscience. . .
  21. ^ See also:

    Pitt, Joseph C.; Pera, Marcello (2012). Rational Changes in Science: Essays on Scientific Reasoning. Springer Science & Business Media. ISBN 9789400937796. Retrieved 18 April 2018. Such examples of pseudoscience as the theory of biorhythms, astrology, dianetics, creationism, faith healing may seem too obvious examples of pseudoscience for academic readers.

    Zerbe, Michael J. (2007). Composition and the Rhetoric of Science: Engaging the Dominant Discourse. SIU Press. p. 86. ISBN 9780809327409. [T]he authors of the 2002 National Science Foundation Science and Engineering Indicators devoted and entire section of their report to the concern that the public is increasingly trusting in pseudoscience such as astrology, UFOs and alien abduction, extrasensory perception, channeling the dead, faith healing, and psychic hotlines.

    Robert Cogan (1998). Critical Thinking: Step by Step. University Press of America. p. 217. ISBN 9780761810674. Faith healing is probably the most dangerous pseudoscience.

    Leonard, Bill J.; Crainshaw, Jill Y. (2013). Encyclopedia of Religious Controversies in the United States: A-L. ABC-CLIO. ISBN 9781598848670. Retrieved 18 April 2018. Certain approaches to faith healing are also widely considered to be pseudoscientific, including those of Christian Science, voodoo, and Spiritualism.
  22. ^ a b "Popular Delusions III: Faith Healing". 26 September 2006. Retrieved 30 April 2018. Naturally, this result has provoked bitter complaints from many believers who assert that God should not be put to the test. In response to the MANTRA study, an English bishop said, "Prayer is not a penny in the slot machine. You can't just put in a coin and get out a chocolate bar." Similarly, in an article in The New York Times on prayer studies from October 10, 2004, Rev. Raymond J. Lawrence Jr. of New York-Presbyterian Hospital is quoted as saying, "There's no way to put God to the test, and that's exactly what you're doing when you design a study to see if God answers your prayers. This whole exercise cheapens religion, and promotes an infantile theology that God is out there ready to miraculously defy the laws of nature in answer to a prayer."
  23. ^ Martin, Michael (1994). "Pseudoscience, the Paranormal, and Science Education" (PDF). Science & Education. 3 (4): 364. Bibcode:1994Sc&Ed...3..357M. doi:10.1007/BF00488452. S2CID 22730647. Archived from the original (PDF) on 13 July 2019. Retrieved 30 March 2018. Cures allegedly brought about by religious faith are, in turn, considered to be paranormal phenomena but the related religious practices and beliefs are not pseudoscientific since they usually have no scientific pretensions.
  24. ^ Gould, Stephen Jay (March 1997). "Non-overlapping magisteria". Natural History. Vol. 106. pp. 16–22. Re-published in Gould, Stephen Jay (1998). "Non-overlapping magisteria". Leonardo's Mountain of Clams and the Diet of Worms. New York: New Harmony. pp. 269–83.
  25. ^ Flamm, Bruce (September–October 2004). "The Columbia University 'miracle' study: Flawed and fraud". Skeptical Inquirer. Committee for Skeptical Inquiry. Archived from the original on 2009-11-06.
  26. ^ Wendler, David (2017). "The Ethics of Clinical Research". The Stanford Encyclopedia of Philosophy (Winter 2017 ed.). Metaphysics Research Lab, Stanford University.
  27. ^ a b Roberts, Leanne; Ahmed, Irshad; Davison, Andrew (15 April 2009). "Intercessory prayer for the alleviation of ill health". Cochrane Database of Systematic Reviews (2): CD000368. doi:10.1002/14651858.CD000368.pub3. PMC 7034220. PMID 19370557.
  28. ^ "eMJA: Prayer as medicine: how much have we learned?". Retrieved 2007-12-21.
  29. ^ Skeptical Inquirer Archived 2008-02-29 at the Wayback Machine, Sept/Oct 2004
  30. ^ Reproductive Medicine Nov 2004
  31. ^ Wacholtz, Amy; Sambamoorthi, Usha (May 2011). "National Trends in Prayer Use as a Coping Mechanism for Health Concerns: Changes from 2002 to 2007". Psychology of Religion and Spirituality. 3 (2): 67–77. doi:10.1037/a0021598.
  32. ^ 'The God Debate' by Sam Harris, Rick Warren, Newsweek – RichardDawkins.net
  33. ^ "Bible Gateway passage: Deuteronomy 6:16 – New American Standard Bible". Retrieved 18 November 2016.
  34. ^ Benson H, Dusek JA, Sherwood JB, et al. (April 2006). "Study of the Therapeutic Effects of Intercessory Prayer (STEP) in cardiac bypass patients: a multicenter randomized trial of uncertainty and certainty of receiving intercessory prayer". American Heart Journal. 151 (4): 934–942. doi:10.1016/j.ahj.2005.05.028. PMID 16569567.
  35. ^ William Paley, 1835, Paley's moral and political philosophy Uriah Hunt Press, Philadelphia page 157
  36. ^ Bertrand Russell, Religion and science Oxford University Press, 1997 ISBN 0-19-511551-1 page xi
  37. ^ Bertrand Russell, The Collected Papers of Bertrand Russell: Cambridge Essays Published by Routledge, 1983 ISBN 0-04-920067-4
  38. ^ Richard Swinburne, Response to a Statistical Study of the Effect of Petitionary Prayer, originally in Science and Theology News 2006.
  39. ^ Dawkins, "The God Delusion", p. 65

Further reading

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