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

[Dexter]

http://www.vox.com/2015/8/27/9216383/irreproducibility-research

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."

Consider the newest evidence: a landmark study published today in the journal Science. More than 270 researchers from around the world came together to replicate 100 recent findings from top psychology journals. By one measure, only 36 percent showed results that were consistent with the original findings. In other words, many more than half of the replications failed.

[GourmetDan]

 
The Rosenhan Experiment.

"Rosenhan's study was done in two parts. The first part involved the use of healthy associates or "pseudopatients" (three women and five men, including Rosenhan himself) who briefly feigned auditory hallucinations in an attempt to gain admission to 12 different psychiatric hospitals in five different States in various locations in the United States. All were admitted and diagnosed with psychiatric disorders. After admission, the pseudopatients acted normally and told staff that they felt fine and had no longer experienced any additional hallucinations. All were forced to admit to having a mental illness and agree to take antipsychotic drugs as a condition of their release. The average time that the patients spent in the hospital was 19 days. All but one were diagnosed with schizophrenia "in remission" before their release. The second part of his study involved an offended hospital administration challenging Rosenhan to send pseudopatients to its facility, whom its staff would then detect. Rosenhan agreed and in the following weeks out of 193 new patients the staff identified 41 as potential pseudopatients, with 19 of these receiving suspicion from at least 1 psychiatrist and 1 other staff member. In fact, Rosenhan had sent no one to the hospital."

                                       

[EdinVA]

It does not really say in the article but I am assuming that the "experiments" were done in the US under the guise of the NIH, as most are.
The contracts to conduct these tests only specify that you have to publish a finding, not that the finding has to be accurate, so this does not surprise me at all.