Brutus, I think it's very clear that you missed the mark in your continued attempts to paint a negative picture of science. You use pejorative buzz words like "junk science" in misapplied manner then quote a study that says studies can only be 50% correct. I don't miss the irony that the New Scientist study itself falls into the same category of being "50% correct" by chance.
But this isn't a problem for science. Its the reason for the peer-reviewed process. The New Scientist article fails to explore the author's methodolgy. What was the data set? Was it peer-reviewed journals only? If so, how did they choose which journals from which to gather data? By circulation numbers? Did they include low as well as high circulating journals? What fields did they include? How many studies/journals were examined? How did they determine the "wrongness" of the studies that were determined to be "wrong?"
Its that last question that the critical thinker will key in on. Logically, the only ways the author of the study, Ioannidis, could have determined the "wrongness" of other studies would be to test their methodologies himself or rely on the tests of others. This is called peer-review.
Now. Since we've established that science is self-correcting, perhaps you can get past the political pejoritives (i.e. "junk science") and move on to point-by-point refutation of that which you disagree with in science. You need not test the hypotheses yourself, you can simply cite the tests of others.
But instead, we get "junk rants" like, "We are told that it is better for millions of third world people to die than use DDT because it hurts bird eggs."
Who has told us this? I point you to my refutation of this point in your own blog. Yet rather than provide a counter-refute, you simply restate it. DDT isn't banned in the "third world." It can still be used in regions where malaria is a risk, but the problem is mosquitos are now resistant to DDT. Other, more effective pesticides are used if the people of peripheral nations can afford the chemicals.
Rather than resort to pseudoscientific methodologies of shouting down the "establishment" of science, try to actually find the data and the works which refute studies that claim results that run counter to your political ideologies.
But the pejorative term of "junk science" is a misused one by those that seek to make political influences and obstruct critical thought and reason that is counter to it. Nothing more.