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pierredv : methods   15

Nutrition Science Is Broken. This New Egg Study Shows Why. Jul 2019
"Nutrition research tends to be unreliable because nearly all of it is based on observational studies, which are imprecise, have no controls, and don’t follow an experimental method."

"Other nutrition research critics, such as John Ioannidis of Stanford University, have been similarly scathing in their commentary. They point out that observational nutrition studies are essentially just surveys"
nutrition  research  methods 
july 2019 by pierredv
What is Ethnography? | Anthropology@Princeton
"Ethnography is a research method central to knowing the world from the standpoint of its social relations. It is a qualitative research method predicated on the diversity of culture at home (wherever that may be) and abroad. Ethnography involves hands-on, on-the-scene learning — and it is relevant wherever people are relevant. Ethnography is the primary method of social and cultural anthropology, but it is integral to the social sciences and humanities generally, and draws its methods from many quarters, including the natural sciences."

"Anthropology is the comprehensive study of human development, culture, and change throughout the world, past and present. "
definitions  ethnography  anthropology  Research  methods 
july 2019 by pierredv
MANET simulation studies - Kurkowski Camp Colagrosso 2005
Via Keith Gremban, 2018

Simulation is the research tool of choice for a majority of the mobile ad hoc network (MANET) community. However, while the use of simulation has increased, the credibility of the simulation results has decreased. To determine the state of MANET simulation studies, we surveyed the 2000-2005 proceedings of the ACM International Symposium on Mobile Ad Hoc Networking and Computing (MobiHoc). From our survey, we found significant shortfalls. We present the results of our survey in this paper. We then summarize common simulation study pitfalls found in our survey. Finally, we discuss the tools available that aid the development of rigorous simulation studies. We offer these results to the community with the hope of improving the credibility of MANET simulation-based studies.
simulation  methods  networking 
march 2018 by pierredv
Crowd-based peer review can be good and fast : Nature News & Comment. Benjamin List. May 2017
"I am not proposing what is sometimes referred to as crowdsourced reviewing, in which anyone can comment on an openly posted manuscript. I believe that anonymous feedback is more candid, and that confidential submissions give authors space to decide how to revise and publish their work. I envisioned instead a protected platform whereby many expert reviewers could read and comment on submissions, as well as on fellow reviewers’ comments."

" Compared with our control experiments, we found that the crowd was much faster (days versus months), and collectively provided more-comprehensive feedback.

Our authors reacted positively, saying that they appreciated the comprehensiveness of the crowd’s comments and the speedy turnaround."
peer-review  research  methods  NatureJournal 
may 2017 by pierredv
The mathematics of science's broken reward system : Nature News & Comment - Nov 2016
“Whenever quantitative metrics are used as proxies to evaluate and reward scientists,” write Smaldino and McElreath, “those metrics become open to exploitation if it is easier to do so than to directly improve the quality of research.” That’s basically a statement of Goodhart’s law, familiar to economists: when a measure of success becomes a target, it loses its worth.
science  research  methods  sociology  NatureJournal 
november 2016 by pierredv
10 years ago science was broken – I'm making it better - opinion - 25 November 2014 - Test - New Scientist
Interview with John Ioannides. Q. Your proposed solution is to introduce a credibility estimate. How might that work? A. Each scientific paper and major result would have a credibility estimate based on the quality of the research. So for the finding that smoking causes lung cancer, the credibility estimate would be 99.99999 per cent. Conversely, for findings where we have only seen a few cases that drug X may cause severe bleeding, for instance, the credibility estimate might be 1 per cent. It may still be worth publishing because it is important to make sure the drug doesn't cause severe bleeding."
NewScientist  scientific-method  research  methods 
december 2014 by pierredv
Half of US clinical trials go unpublished : Nature News & Comment Nov 2013
The results of clinical trials are going unpublished as much as half the time, and those that are published omit some key details, a study has found
clinical  trials  research  methods  NatureJournal 
december 2013 by pierredv
Bias | ACM Interactions - Jonathan Grudin
"Confirmation bias is built into us. Ask me to guess what a blurry image is, then bring it slowly into focus. When it has become clear enough to be recognizable by someone seeing it this way for the first time, I will still not recognize it. My initial hypothesis blinds me. Quantitative studies are no guard against these problems. In fact, they often exhibit a seductive form of confirmation bias: inference of a causal relationship from correlational data, a major problem in conference and journal submissions I have reviewed over the years. Am I biased about the importance of confirmation bias? I’m convinced that we must relentlessly seek it out in our own work and that of our colleagues, knowing that we won’t always succeed. Perhaps now I see it everywhere and overlook more significant obstacles. So decide how important it is, and be vigilant."
qualititative  methods  experiment  grounded  theory  confirmation  bias  correlation  vs  causation  Francis  Bacon  bias  statistics 
august 2013 by pierredv
The best time to measure RF interference | Test and Measurement content from Urgent Communications
"So, what is the best method for preventing interference from adversely affecting a system? The answer is to measure the RF environment at a location before a system is installed."
methods  troubleshooting  RF  interference  noise  measurement 
january 2013 by pierredv
Big Data Troves Stay Forbidden to Social Scientists - May 2012
"When scientists publish their research, they also make the underlying data available so the results can be verified by other scientists. At least that is how the system is supposed to work. But lately social scientists have come up against an exception that is, true to its name, huge."
privacy  research  methods  data  NYTimes 
may 2012 by pierredv
Cats that cure: Pets' healing power put to the test - opinion - 08 November 2010 - New Scientist
Essay by Hal Herzog, developed from his book "WHY is it so difficult to think straight about animals? How do we assess the comparative cruelty of cockfights and Happy Meals?" Analyzes research on health benefits of pets; finds that null or adverse results aren't published
animals  research  methods  NewScientist 
november 2010 by pierredv
the Fourth Paradigm - Essays Inspired by Microsoft’s Jim Gray, Who Saw Science Paradigm Shift -
"The first three paradigms were experimental, theoretical and, more recently, computational science. He explained this paradigm as an evolving era in which an “exaflood” of observational data was threatening to overwhelm scientists. The only way to cope with it, he argued, was a new generation of scientific computing tools to manage, visualize and analyze the data flood. "
Available online:
science  computing  data  microsoft  books  methods 
december 2009 by pierredv

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