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Rich guys are most likely to have no idea what they’re talking about, study suggests - The Washington Post

Using a data set spanning nine predominantly English-speaking countries, researchers delineated a number of key findings. First, men are much more likely than women to master the art of hyperbole, as are the wealthy relative to the poor or middle class. North Americans, meanwhile, tend to slip into this behavior more readily than English speakers in other parts of the globe. And if there were a world championship, as a true devotee might appreciate, the title would go to Canada, data show.

Research: Adequate statistical power in clinical trials is associated with the combination of a male first author and a female last author | eLife

Here we investigate whether the statistical power of a trial is related to the gender of first and last authors on the paper reporting the results of the trial. Based on an analysis of 31,873 clinical trials published between 1974 and 2017, we find that adequate statistical power was most often present in clinical trials with a male first author and a female last author (20.6%, 95% confidence interval 19.4-21.8%), and that this figure was significantly higher than the percentage for other gender combinations (12.5-13.5%; P<0.0001). The absolute number of female authors in clinical trials gradually increased over time, with the percentage of female last authors rising from 20.7% (1975-85) to 28.5% (after 2005). Our results demonstrate the importance of gender diversity in research collaborations and emphasize the need to increase the number of women in senior positions in medicine.

Who's smarter in the classroom -- men or women? New study shows it's all about perception -- ScienceDaily

The researchers were surprised to find that women were far more likely to underestimate their own intelligence than men. And, when comparing a female and a male student, both with a GPA of 3.3, the male student is likely to say he is smarter than 66 percent of the class, and the female student is likely to say she is smarter than only 54 percent of the class. In addition, when asked whether they are smarter than the person they worked most with in class, the pattern continued. Male students are 3.2 times more likely than females to say they are smarter than the person they are working with, regardless of whether their class partners are men or women.

Adderall Concentration Benefits in Doubt: New Study

The last question they asked their subjects was: "How and how much did the pill influence your performance on today's tests?" Those subjects who had been given Adderall were significantly more likely to report that the pill had caused them to do a better job on the tasks they'd been given, even though their performance did not show an improvement over that of those who had taken the placebo.