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| title | chunk | source | category | tags | date_saved | instance |
|---|---|---|---|---|---|---|
| Efficacy of prayer | 2/2 | https://en.wikipedia.org/wiki/Efficacy_of_prayer | reference | science, encyclopedia | 2026-05-05T07:04:55.150689+00:00 | kb-cron |
=== Medical views === Most scientists dismiss "faith healing" practitioners. 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. 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, claims of reproducible effects are nevertheless subject to scientific investigation. Scientists and doctors generally find that faith healing lacks biological plausibility or epistemic warrant, which is one of the criteria used to judge whether clinical research is ethical and financially justified. 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". 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". 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." 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. 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.
=== Skepticism on scope of 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: 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 ==
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") 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, 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:
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. 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."
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", finds one predictable result of prayer: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 == Magical thinking Thoughts and prayers
== Notes ==
== References ==
== Further reading == Sloan, Richard P. (2006). Blind faith: the unholy alliance of religion and medicine. New York: St. Martin's Press. ISBN 978-0-312-34881-6. Behrman, E. J., "Testing Prayer", Skeptic, 11:4, 15(2005)
== External links ==