Prayer: Studies cast doubt as to whether it works
Thought the title would catch your attention. And yes, it probably would have been more appropriate to say that "some studies cast doubt..." (see below).
While many people think that psychologists have a natural enmity toward religion, most psychologists of religion attempt to remain neutral with regard to the truth claims of religious faith, choosing to study the effect of religion upon the religious person, rather than trying to make claims about a religion, per se. Yet, when we get to the topic of prayer and whether it "works" in the real world, it's hard to refrain from making claims of "truth" with regard to God's activity (or inactivity) in the "real world."
Studies of intercessory prayer (prayer that seek to influence the health and well-being of the person prayed for) are mixed with regard to results and controversial in the field. In a review of several studies, Spilka, et al., suggest that "...at this stage of research...[intercessory prayer's] power and significance have yet to be demonstrated."
They make this claim after reporting on several studies that present a mixed picture.
- One small study done in 1965 by Joyce and Weldon found that intercessory prayer (sick persons being prayed for six months) made no difference in the outcome of those persons in comparison with a control group of sick persons who were not prayed for by a prayer group.
- Colipp (1969) found (in a very small study) that a group of children diagnosed with leukemia who had been prayed for over a 15 month time span "had a slight advantage [over a group of child with leukemia who had not been prayed for] in survival."
- A 1997 study by Walker, et al., suggested that intercessory prayer made no difference in reducing alcohol consumption by individuals with alcohol abuse/dependence.
- The largest study they reviewed (Byrd, 1988) was of 393 coronary disease patients. Its findings suggested that intercessory prayer made a positive impact on the health and recovery of the patients who were randomly selected to receive intercessory prayer in this double-blind study relative to those in a control group. However, this study has been criticized with regard to its methodological rigor.
- Finally, one study found that the "agents" of intercessory prayer (those praying for another who was ill in some way) showed greater improvements in their mental state than the "subjects" of intercessory prayer (those needing God's intervention because of illness). (McCullough and Larson, 1999).