Unreplicable

September 18, 2015
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Leonid Schneider writes: I am cell biologist turned science journalist after 13 years in academia. Despite my many years experience as scientist, I shamefully admit to be largely incompetent in statistics. My request to you is as follows: A soon to be published psychology study set on to reproduce 100 randomly picked earlier studies and […] The post Unreplicable appeared first on Statistical Modeling, Causal Inference, and Social Science.

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I’m speaking in Germany today!

September 18, 2015
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I’m speaking in Germany today!

Right between Mittagspause and Tagungsabschluss, just how I like it. It’s a methods conference for the German Psychological Society in Jena. Here’s my title and abstract: Applied Bayesian Statistics Bayesian methods allow the smooth combination of information from multiple sources and are associated with open acknowledgement about uncertainty. We discuss modern applied Bayesian perspectives on […] The post I’m speaking in Germany today! appeared first on Statistical Modeling, Causal Inference,…

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Petit exercice de proba

September 17, 2015
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Petit exercice de proba

Mardi dernier, on avait fait une série d’exercices de proba, et je voulais reprendre un exercice pour lequel j’avais proposé une vérification sur ordinateur. Pour résoudre l’exercice, j’avais suggéré la méthode suivante. est tiré parmi , alors que est tiré parmi .  On note assez facilement que le plus petit nombre est , et comme le ppcm de  et  est , (je laisse faire les calculs pour montrer qu’effectivement, au delà, on n’est plus dans les ensembles…

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Not So Standard Deviations: The Podcast

September 17, 2015
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I'm happy to announce that I've started a brand new podcast called Not So Standard Deviations with Hilary Parker at Etsy. Episode 1 "RCatLadies Origin Story" is available through SoundCloud. In this episode we talk about the origins of RCatLadies, evidence-based data analysis, my new book, and the Python vs. R debate. You can subscribe

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The Map of Romantic Kissing with Leaflet and R

September 17, 2015
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The Map of Romantic Kissing with Leaflet and R

Romantic kissing is a cultural universal, right? Nope! At least not if you are to believe Jankowiak et al. (2015) who surveyed a large number of cultures and found that “sexual-romantic kissing” occurred in far from all of them. For some reasons ...

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Medical decision making under uncertainty

September 17, 2015
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Gur Huberman writes: The following crossed my mind, following a recent panel discussion in which David Madigan participated on evidence-based medicine. The panel—especially John Iaonnidis—sang the praise of clinical trials. You may have nothing wise to say about it—or pose the question to your blog followers. Suppose there’s a standard clinical procedure to address a […] The post Medical decision making under uncertainty appeared first on Statistical Modeling, Causal Inference,…

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imager now on CRAN, and a non-linear filtering example

September 17, 2015
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imager now on CRAN, and a non-linear filtering example

imager is an R package for image processing that’s fairly fast and now quite powerful (if I may say so myself). It wraps a neat C++ library called CImg, by David Tschumperlé (CNRS). It took quite a bit of work, but imager is now on CRAN, so that installing it is as easy as: Here’s […]

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The aching desire for regular scientific breakthroughs

September 16, 2015
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The aching desire for regular scientific breakthroughs

This post didn’t come out the way I planned. Here’s what happened. I cruised over to the British Psychological Society Research Digest (formerly on our blogroll) and came across a press release entitled “Background positive music increases people’s willingness to do others harm.” Uh oh, I thought. This sounds like one of those flaky studies, […] The post The aching desire for regular scientific breakthroughs appeared first on Statistical Modeling,…

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Warning Problem Hopefully Solved

September 16, 2015
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If during the last month you got a warning when accessing No Hesitations, I may have found and fixed the problem, finally.  (This happened once before.)  There were a couple of clearly bogus comments, which contained links that may have ...

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Error distributions and exponential regression models

September 16, 2015
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Error distributions and exponential regression models

Last week I discussed ordinary least squares (OLS) regression models and showed how to illustrate the assumptions about the conditional distribution of the response variable. For a single continuous explanatory variable, the illustration is a scatter plot with a regression line and several normal probability distributions along the line. The […] The post Error distributions and exponential regression models appeared first on The DO Loop.

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Popper on pseudoscience: a comment on Pigliucci (i), (ii) 9/18, (iii) 9/20

September 16, 2015
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Popper on pseudoscience: a comment on Pigliucci (i), (ii) 9/18, (iii) 9/20

Jump to Part (ii) 9/18/15 and (iii) 9/20/15 updates I heard a podcast the other day in which the philosopher of science, Massimo Pigliucci, claimed that Popper’s demarcation of science fails because it permits pseudosciences like astrology to count as scientific! Now Popper requires supplementing in many ways, but we can get far more mileage out […]

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Unbelievable

September 15, 2015
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Unbelievable

This is a very different book from my usual areas of forecasting and statistics. It is a personal memoir describing my journey of deconversion from Christianity. Until a few years ago, I was regularly speaking at church conferences internationally, and my books are still used in Bible classes and Sunday Schools around the world. I […]

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Isn’t sad that all that matters in an election is the candidate’s height?

September 15, 2015
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Isn’t sad that all that matters in an election is the candidate’s height?

I came across this claim in the US press suggesting evidence for a positive relationship between a candidate's height and his vote support. That is, the taller the candidate, the better his/her chances for success in presidential elections. After a little search, I found this Wikipedia entry, and even some academic research on the issue, … Read More →

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Even though it’s published in a top psychology journal, she still doesn’t believe it

September 15, 2015
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Even though it’s published in a top psychology journal, she still doesn’t believe it

Nadia Hassan writes: I wanted to ask you about this article. Andrea Meltzer, James McNulty, Saul Miller, and Levi Baker, “A Psychophysiological Mechanism Underlying Women’s Weight-Management Goals Women Desire and Strive for Greater Weight Loss Near Peak Fertility.” Personality and Social Psychology Bulletin (2015): 0146167215585726. I [Hassan] find it kind of questionable. Fortunately, the authors […] The post Even though it’s published in a top psychology journal, she still doesn’t…

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In my humble opinion…

September 15, 2015
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In my humble opinion…

The American Statistical Association have shared this picture on their Facebook page $-$ I think the quote is brilliant!

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IJF vol 31(4): Forecasting in telecommunications and ICT

September 15, 2015
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IJF vol 31(4): Forecasting in telecommunications and ICT

The last issue of the International Journal of Forecasting for 2015 has been released. This one contains the usual mix of topics, plus a special section on Forecasting in telecommunications and ICT including a nice review article by Nigel Meade and T...

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Isn’t sad that all that matters in an election is the candidate’s height?

September 15, 2015
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Isn’t sad that all that matters in an election is the candidate’s height?

Candidate's height may be very important in elections

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Isn’t sad that all that matters in an election is the candidate’s height?

September 15, 2015
By
Isn’t sad that all that matters in an election is the candidate’s height?

I came across the claim in the US press suggesting that the taller the candidate, the better his/her chances for success in presidential elections. After a little search, I found this Wikipedia entry, and even some academic research on the issue, mainl...

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Next Kölner R User Meeting: Friday, 18 September 2015

September 15, 2015
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Next Kölner R User Meeting: Friday, 18 September 2015

The 15th Cologne R user group meeting is scheduled for this Friday, 18 September 2015 and we have a full agenda with three talks followed by networking drinks. R in big data pipeline with luigi (Yuki Katoh)R in big data pipeline: Put your awesome R co...

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Why Is Metadata So Hard?

September 15, 2015
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The U.S. Department of Education just released an amazing dataset about the costs of going to college, earnings potential, etc. They’re doing so many things right, it’s really great. But what is still lacking is the metadata, making analysis harder than it needs to be. I haven’t even looked through all the data, but it looks very … Continue reading Why Is Metadata So Hard?

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Why aren’t people sharing their data and code?

September 15, 2015
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Joe Mienko writes: I made the following post on http://academia.stackexchange.com/ a couple of hours ago. It is still relatively uncommon for social scientists to share data or code as a part of the peer review process. I feel that this practice runs contrary to notions of replicability and reproducibility and have a desire to voice […] The post Why aren’t people sharing their data and code? appeared first on Statistical…

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Isn’t sad that all that matters in an election is the candidate’s height?

September 15, 2015
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Isn’t sad that all that matters in an election is the candidate’s height?

A candidate’s stature may be more important in elections than we realized. I came across this claim in the US press suggesting that the taller the candidate, the better his/her chances to succeed in the presidential elections. After a little search,...

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Isn’t sad that all that matters in an election is the candidate’s height?

September 15, 2015
By
Isn’t sad that all that matters in an election is the candidate’s height?

The candidate’s height may be very important in elections. I came across the claim in the US press suggesting that the taller the candidate, the better his/her chances for success in presidential elections. After a little search, I found this Wi...

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