When we look for reliable sources of information, we turn to studies published in peer-reviewed scientific journals. But in some cases, researchers find it difficult to reproduce the results of certain studies, and often their findings turn out to be different from the original ones—even when the same methods and procedures are used—thereby making the study unreliable. This discrepancy is called a “reproducibility crisis”—or the inability of scientific findings to be replicated by other researchers. This problem has become more prevalent over the past few decades, and according to existing evidence, it affects up to a quarter of studies in cancer research and over a third of studies in psychology.
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Source: Phys.org