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Tagpower poses

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Fool’s Gold: Even AI Successes Can Be Failures

Large doses of data, math, and computing power do not make a computer intelligent

I recently read this enthusiastic claim by a professional data miner: Twitter is a goldmine of data…. [T]erabytes of data, combined together with complex mathematical models and boisterous computing power, can create insights human beings aren’t capable of producing. The value that big data Analytics provides to a business is intangible and surpassing human capabilities each and every day. Anthony Sistilli, “Twitter Data Mining: A Guide to Big Data Analytics Using Python” at Toptal I was struck by how easily he assumes that large doses of data, math, and computing power make computers smarter than humans. He is hardly alone, but he is badly mistaken. Computer algorithms are really, really good at making mathematical calculations and identifying statistical patterns (what Turing winner Judea Pearl calls “just curve…

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Fake It ’til You Make It – The Power Pose Parable Part II

Where does p-hacking and the replication crisis leave the state of scientific studies?

Last time, we explored the findings of a 2010 psychological study, which concluded that assuming a “power pose” for two minutes increases testosterone (confidence) and decreases cortisol (stress). But it turned out that p-hacking affected the results of the initial study, and that subsequent studies debunked the “power pose” findings. Dana Carney, the lead author of the original paper, acknowledged the faults of the original study and updated her views “to reflect the evidence.” Today, we explore the implications: Carney’s willingness to acknowledge the p-hacks and to support efforts to redo the power-pose tests is convincing evidence that the p-hacks were well-intentioned. This was how a lot of research was done at the time. Joseph Simmons, Leif Nelson, and Uri…

He is big boss and has power

Fake It ‘til You Make It — The Power Pose Parable

Why a study "proving" a unique way to boost confidence and reduce stress turned out to be wrong

A 2010 paper published in a top-tier psychology journal advised that “a person can, by assuming two simple 1-min poses, embody power and instantly become more powerful.” The researchers had 42 people assume two positions for one minute each — either high-power poses (sitting in a chair with their feet on a desk and standing with their hands spread on a desk) or low-power poses (sitting in a chair with hands clasped between their legs and standing with their arms and legs crossed). Saliva samples were used to measure the dominance hormone testosterone and the stress hormone cortisol. Risk-taking was gauged by a willingness to take a bet with a 50 percent chance of winning $2 and a 50 percent chance of losing…