This refers to the failure of many scientific studies to replicate the results of previous studies. It is usually attributed to various errors and biases in the methodology used by scientists to conduct their experiments on a subject. Others, however, have attributed the replication crisis to the inherent impossibility of arriving at the real truth in certain fields of study using scientific methods. This may be due to randomness. Since some major scientific theories have been based on data that have failed to be replicated by follow-up studies, many scientists have been forced to rethink their previous conclusions.
