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In scientific research, including parapsychology, a procedure wherein neither the subject nor even the experimenter is aware of valuable key aspects of the experiment. For example, one experimenter could put a variety of photos in separate envelopes. A second experimenter would randomly choose one of the envelopes and could not have any idea of what is in the envelope. The subject would try to determine, paranormally, what is in the envelope.
We are proud to bring our readers our annual tarot catalog! Discover the newest in tarot and oracle offerings from Llewellyn, Lo Scarabeo, and Blue Angel, plus get free shipping on US orders over $35 and 20% savings when you order any...