Pseudoscience:A practice or approach that claims to be scientific but does not adhere to the key princibles of the scientific process.
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Lacks Falsifiability
The aim of the scientific process is to test hypotheses and falsify them.
E.g. a study may find no evidence of ESP, and appear to disproof the hypothesis that ESP exsists. -However some paranormal psychologists claim that the lack of supporting evidence occurs becuase sceptics are present and the phenomena disappear becuase of this.
The end result is a non-falsifiable hypothesis.
Many hypotheses related to anomalous experience are of this nature.
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Lack of Carefully Controlled, Replicable Research
There are many studies of paranormal phenomena that claim to be highly controlled but arn't
There are also many examples of failure to replicate studies of paranormal phenomena, especially by non-believers. -Recently Burn (2011) Produced evidence that people can sense future events before they happen. His research involved testing participants recall of words. Normally a person would be able to remember words that were previously rehersed better than those not rehersed. In this study Burn demonstrated that people remember better if rehersal occured afterwards; so a future event was affecting the present. However a team of 3 UK sceptical researchers seporately failed to replicate this result.
The fact that sceptics invariably fail to get the same results as believers challenges the objective nature of the research.
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Lacks Theories to Explain the Effects
The aim of scientific research is to construct theories.
Most paranormal phenomena have not, as yet, been given theoretical explinations. - E.g. How does ESP happen? Or what is it that allows some people to move objects without touching them.
The Society for Psychial Research (SPR) acknowledges this, "Psychial research will not attain scientific respectability untill it had agreed some theoritical basis" (SPR, 2011).
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Burden of Proof Misplaced
Supporters of psi phenomena argue that the burden of proof is not theirs and say its upto sceptics to disproof psi phenomena.
Such disproof is difficult becuase, for example, it is not always simple to proof a photo is fake.
In science, the burden of proof usually lies with the believer and not the sceptic.
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Lack of Ability to Change
A key element of science is that explinations are adapted as a result of hypothesis testing.
If a scientist fails to find support for a hypothesis, the responce is to develop a new explination/hypothesis.
This is not the case with psi phenomena which have continued to be explained in the same way for centuries, despite the lack of evidence.
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