Amajor concern about esp claims is that proponents explain both the positive and negative findings. by explaining the negative findings via the experimenter and decline effects, proponents of esp are faced with a problem in which principle of critical thinking?

Falsifiability

Explanation: Falsifiability is the term that is defined as the evaluation of any particular hypothesis or theory to be proven wrong .This feature gives the access that the theory can be tested and have more accurate claims .

The ESP(Extrasensory perception) theory  can also have feature of being falsifiable because the experiments and test lead to the issue that the negative effects of the theory are not certain which might occur due to simple observation of effects.

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