Statistician’s Book « Statistics and Research Services

Statistician’s Book

This site contains various statistical topics and issues entitled statistically speaking – research, theories, and facts. It is a statistical related site where you can learn statistical information on divorce statistics, baseball statistics, and numerous statistics related topics.

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12 11 2008: Elvin Deza (05:52:51) :

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Spirling cited in Nature, underlying pattern of human conflict found

A recent paper in Nature documents power-law patterns (i.e. scale invariance) in the distribution of events within insurgencies: The number of casualties per insurgent event, and the number of insurgent events per day, apparently follow striking regularities across an array of insurgencies. Power laws everywhere! What makes the paper especially notable aroun […]

a cautionary christmas tale

Merry Christmas, everyone! I was amused to read about the hoopla involving this online "study" in the BMJ entitled "Santa Claus: A Public Health Pariah." The tongue-in-cheek article, written by Australian epidiomiologist Nathan J. Grills, contends that the corpulent Mr. Claus and his "rotund sedentary image" set a bad example fo […]

Happy Holidays?

This morning the New York Times alerted me to a Science piece written by two economists working on measuring happiness. Their basic finding is that objective measures of quality of life (nice climate, etc) are pretty highly correlated with subjective, self-reported measures of how satisfied people are with their lives. They provide a ranking of US states by […]

competition and the N-effect

I've taken my fair share of standardized tests, so I sat up and took notice of a recent study published in Psychological Science about what happens to SAT scores when students take the test in crowded versus empty rooms. What the two researchers, Stephen Garica (UMich) and Avishalom Tor (Haifa University), are out to study is the impact that increased c […]

Academic Specialization Time and Career Switches -- Malamud Working Paper

Among the new working papers at NBER is this interesting paper by Ofer Malamud, an education economist at Chicago's Harris School. Malamud is interested in the relative benefits of specializing early or late in one's academic career: specializing early presumably allows you to accumulate more skill in your specialization, but it also probably resul […]

trends in municipal data availability

I read with some interest a recent NYTimes article about how cities are increasingly making public reams of municipal data. Basically, what the article noted was an increasing trend among US municipalities in making public data available and easy to digest. Among the cities taking the lead are San Francisco (with its DataSF website), New York (Data Mine), Wa […]

Glynn on "What Can We Learn with Statistical Truth Serum?"

We hope you can join us this Wednesday, December 2nd for the final Applied Statistics Workshop of the term, when we will have Adam Glynn (Department of Government) presenting his talk entitled "What Can We Learn with Statistical Truth Serum?" Adam has provided the following abstract: Due to the inherent sensitivity of many survey questions, a numbe […]

Climate change and conflict in Africa

A paper just published in PNAS finds that armed conflict in Africa in recent decades has been more likely in hotter years, and projects that warming in the next twenty years will result in roughly 54% more conflicts and almost 400,000 more battle deaths. This is an important paper and it probably will attract significant attention from the media and policyma […]

Cookbooks and constitutions

Slightly off-topic insights from Adam Gopnik: All this is true, and yet the real surprise of the cookbook, as of the constitution, is that it sometimes makes something better in the space between what's promised and what's made...Between the rule and the meal falls the ritual, and the real ritual of the recipe is like the ritual of the law; the rea […]

Everything about causal inference in 40 pages

Judea Pearl describes his new article Causal inference in statistics: An Overview as "a recent submission to Statistics Survey which condenses everything I know about causality in only 40 pages." That seemed like a bold claim, but after reading it I'm sold. I don't come from Pearl's "camp" per se, but I found this a really […]

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