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Each scientific field must adopt its own methods of ensuring accuracy. But ultimately, this self-reflection is a key part of the scientific process. As Bishop notes, “Science has proved itself to be an incredibly powerful method.” And yet there’s always room for further advancement. “There’s never an end point,” says Bishop. “We’re always groping towards the next thing. Sometimes science does disappear down the wrong path for a bit before it corrects itself.” For Nosek, who led the re-testing of 100 psychology papers, the current focus on reproducibility is simply part of the scientific process. “Science isn’t about truth and falsity, it’s about reducing uncertainty,” he says. “Really this whole project is science on science: Researchers doing what science is supposed to do, which is be skeptical of our own process, procedure, methods, and look for ways to improve.”

One of the problems is that no narrative feature is going to be able to convey the absolute truth. Characters inevitably get conflated and information omitted.“I think if you have two hours to tell a story, you have to contract things, you have to make your point in ways that a documentary would make them differently,” says David Oyelowo, the British actor who portrays Martin Luther King Jr.

If we’re going to rely on science as a means for reaching the truth — and it’s still the best tool we have — it’s important that we understand and respect just how difficult it is to get a rigorous result

Scientists’ overreliance on p-values has led at least one journal to decide it has had enough of them. In February, Basic and Applied Social Psychology announced that it will no longer publish p-values.

P-hacking and similar types of manipulations often arise from human biases. “You can do it in unconscious ways — I’ve done it in unconscious ways,” Simonsohn said. “You really believe your hypothesis and you get the data and there’s ambiguity about how to analyze it.” When the first analysis you try doesn’t spit out the result you want, you keep trying until you find one that does.

People who had previously purchased a green product were significantly more likely to both lie and steal than those who had purchased the conventional product. Their demonstration of ethical behavior subconsciously gave them license to act unethically when the chance arose. + Amazingly, even just saying that you’d do something good can cause the moral self-licensing effect. In another study, half the participants were asked to imagine helping a foreign student who had asked for assistance in understanding a lecture. They subsequently gave significantly less to charity when given the chance to do so than the other half of the participants, who had not been asked to imagine helping another student.

My sister is the greatest blessing in my life. My parents and I were at the hospital when her birth mother went into labor, so she has been with us for her entire life. My parents never told her that she was adopted, and they asked me not to say anything. They planned on telling her when she was old enough to understand, but they kept putting it off. They know that I believe they have done her a serious disservice.

EVERYONE by nature desires to know,” wrote Aristotle more than 2,000 years ago. But are there limits to what human beings can know? This is the question that Marcus du Sautoy, the British mathematician who succeeeded Richard Dawkins as the Simonyi professor for the public understanding of science at Oxford University, explores in “What We Cannot Know”, his fascinating book on the limits of scientific knowledge.

Eventually, he turns to his own field of mathematics. If people cannot know everything about the physical world, then perhaps they can at least rely on mathematical truth? But even here there are limits.

Like a number of up-and-coming researchers in his generation, Nosek was troubled by mounting evidence that science itself—through its systems of publication, funding, and advancement—had become biased toward generating a certain kind of finding: novel, attention grabbing, but ultimately unreliable. The incentives to produce positive results were so great, Nosek and others worried, that some scientists were simply locking their inconvenient data away. Related Stories Nick Stockton Science Gets Better at Being Wrong Katie M. Palmer Science Has Its Problems, But the Web Could Be the Fix Katie M. Palmer Psychology Is in Crisis Over Whether It’s in Crisis The problem even had a name: the file drawer effect.