Replication problems are ubiquitous
You sometimes get a bit defensive as a psychologist, with the replication problem. But, as I have maintained, it is not unique to psychology. Anywhere where systems are complex and messy, there will be problems, because, well, science really is hard (but, no Barbie, that should not put you off from doing it). Here is an article from Elizabeth Iorns in the new scientist, talking about that this is a problem in medicine also.
She is (as she states in the article) the cofounder of science exchange, who are working on trying to better the situation.
(Chris Chambers did the retweet for this)