Weekly Roundup 3-10-13

School: A new study indicates that when children exercise, it sparks hormonal changes that help reduce their cortisol levels, and, in turn, their stress. “In a school, a child who gets more activity on a daily basis…will respond better to everyday stressors like tests and social challenges.”

Psychology: “Psychologists have an aversion to some essential aspects of science that they perceive to be unexciting or less valuable. Historically, the discipline has done almost nothing to ensure the reliability of findings through the publication of repeat studies and negative (“null”) findings.”

A recent article in the UK Guardian suggests it’s time for psychologists to get their collective research house in order. The author even includes some shocking results from a 2011 study of nearly 6,000 American psychologists:

“The majority” admitted to:

  • …being guilty of selectively reporting studies that “worked” (67%)
  • …failing to report all dependent measures (74%)
  • …continuing to collect data to reach a significant result (71%)
  • …reporting unexpected findings as expected (54%)
  • …and excluding data post-hoc (58%).

“Remarkably, 35% indicated that they had doubts about the integrity of their own research on at least one occasion and 1.7% admitted to having faked their data.”

Ouch.

Scholarship: Once again, Vaughan Bell delivers the goods with an excellent post titled “The History of the Birth of Neuroculture.”

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