Scientists replicated 100 recent psychology experiments. More than half of them failed.

Replication is one of the foundational ideas behind science. It's when researchers take older studies and reproduce them to see if the findings hold up. Testing, validating, retesting: It's all part of the slow and grinding process to arrive at some semblance of scientific truth. Yet it seems that way too often, when we hear about researchers trying to replicate studies, they simply flop or flounder. Some have even called this a "crisis of irreproducibility."
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