In news that should surprise nobody ... http://www.theguardian.com/science/...-on-validity-of-psychology-experiment-results “Sadly, the picture it paints - a 64% failure rate even among papers published in the best journals in the field - is not very nice about the current status of psychological science in general, and for fields like social psychology it is just devastating,” he said. Particularly suspect, I think, are those studies that claim lasting performance differences from relatively minute variations in how issues are presented. Example from the article, "One study that failed replication claimed that encouraging people to believe there was no such thing as free will made them cheat more." There are legions of similar such studies, particularly in educational psychology, where some dubious intervention ('give the kids popsicles') is said to have miraculous impact on their subsequent performance. This doesn't mean that all psychology studies are useless -- some have held up rather well -- but the reigning impression that most are non-replicable efforts to prove the researcher's intended conclusion seems to be correct.