This great graph, taken using a wearable sensor, shows a student’s emotional, physical, and mental arousal during all different phases of every day of the week.
The device measures what’s called Electrodermal Activity — which measures the activity of the sympathetic nervous system, best known to control the fight-or-flight response. It is activated by emotional arousal, increased cognitive workload, or physical exertion.
Spikes pop up during lab work, exams, studying, and sleep, but what’s stunning is how low activity levels were during this student’s classes. They must have been super boring.
One of the biggest problems in the world of science is researcher bias.
It’s a follow-up to their 2011 paper, “False Positive Psychology,” which uncovered many of the holes that exist in psychology research. One of the problems is “p-hacking,” or the practice of changing assumptions or data in an experiment to ensure that the probability (“p”) an opposite hypothesis (“null”) contradicts the research is below a certain level. Ultimately, “p-hacking” makes research less valid and increases the number of “false positives.”
Because of this, the authors put together a 21-word statement every researcher should use as a disclosure, which they hope will make the field of science more transparent:
“We report how we determined our sample size, all data exclusions (if any), all manipulations, and all measures in the study.”
The authors perfectly sum up the transparency problem with an analogy and a photo. Whereas coffee shops are required to label milk containers, scientists don’t have to “label their milk.” In other words, researchers don’t have to relay what data they started out with, whether they took observations out, or whether they’ve dropped things from their model:
The table below of simulated results from their earlier paper shows how much these! unrepor ted techniques can impact statistical significance:
The lesson? Look for disclosures in any scientific paper, and always be skeptical.
Read the full article here
NOW READ: 18 Tips On Making Smarter Decisions
Johnnie Manzari recently wrote about Uber, the app that lets you summon a town car taxi in a blog post.
Travis Kalanick, the CEO of Uber, was asked by a female friend why someone in New York City would use Uber when taxis were readily available. He replied “Why do you have a Louis Vuitton purse and not keep your things in a paper bag?”
Kalanick is wrong.
The only reason to use a black car in New York is that is raining, or that you are in an outer-borough, where there are no yellow cabs.
For example, black cars are a big business where I live, in Washington Heights.
On a Saturday night, for example, people call up dispatchers on their cell phones and get a black car to go out to dinner or whatever.
At the local movie theaters, black cars are constantly dropping people off. The famous Arthur Avenue in The Bronx is lined with them.
Anyway, Uber is missing out big time on this business.
If you open the app up in the Bronx or even way uptown where I am, it tells you there are no cars available.
It should quit focus on being a fancy brand, and try to be something useful instead.
(Phys.org)—Move over, Siri. Some researchers from the University of Rochester in collaboration with a University of California, Berkeley, mathematician/crowdsourcing entrepreneur, have come up with a killer personal assistant approach. “We introduce Chorus, a system that enables realtime, two-way natural language conversation between an end user and a crowd acting as a single agent.” So begins their paper, “Speaking with the Crowd,” suggesting the ideal artificial chat partner is the partner that is actually the work of contributions from many crowdsourced workers. The researchers propose a crowd-powered chat system that behaves as an online collaborative interface. They believe it one-ups existing systems because it can take on more complex tasks.
The FAA has approved American Airlines to be the first commercial airline to have its pilots use iPads in “all phases of flight,” rather than the 35lb paper reference manuals they’re used to.
Based on current fuel prices, The Next Web estimates that this will save the airline some $1.2M annually, across all of its aircraft. This month, AA’s 777 fleet will be the first to get the technological upgrade; by the end of this year, all fleet types are expected to have approval for the switch and the paper manuals will cease to be revised.
This is a huge environmentally friendly move for AA: not only will the ligher tablets save fuel, based on the weight carried by the planes, but they will also save paper, for ever manual printed and revised, company-wide.
This would also seem to confirm what we’ve all long suspected: there is really no real risk to having a tablet turned on during take-off. [TNW]
Images by Nickolay Lamm/Inventhelp
Amazon has been renting out Kindle editions of textbooks for sometime now, but not all the educational tomes you need may be available in electronic form. And, believe it or not, some people just plain prefer paper to E-ink — especially since its much easier to take notes in the margins. Now many of the more expensive texts on the site also feature a rent option. Most are in the $30 to $60 range and are rented by the semester, which Amazon counts as 130 days. Should you need it for a bit longer, you can extend your rental period by 15 days, but only once. On the plus side, Amazon will pay for the shipping on the return of the books. For more info, check out the FAQ at the source.
Filed under: Misc. Gadgets
The way shoppers search for coupons is changing. While the days of tearing apart the Sunday paper for coupons haven’t passed just yet, we are seeing a lot more people switch to their smartphones to look for deals.
To help with the growing demand for mobile coupons, Coupon Cabin just launched an all new app that lets users search for coupons by category for hundreds of online retailers.
Check out the graphic from Coupon Cabin below for more facts about our mobile coupon habits:
Even in this electronic age, even for Facebook, you can still get a paper stock certificate issued.
You covet it, don’t you?
Dr. Augustine Fou is Digital Consigliere to marketing executives, advising them on digital strategy and Unified Marketing(tm). Dr Fou has over 17 years of in-the-trenches, hands-on experience, which enables him to provide objective, in-depth assessments of their current marketing programs and recommendations for improving business impact and ROI using digital insights.
Collaborators – Digital Profs
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