Riding Numbers

When should you use listwise or pairwise in regression analysis or some other analysis that allows you to choose? This question came to mind...

A new report on Lancet has looked at the incidence of cancer among Canadian prisoners. Two things that immediatelly come to mind: - Very l...

I think one of the great skills statisticians end up having is their ability to use statistical tools to evaluate scientific research and as...

Randomness is something very important in statistics. Yet I have this opinion that it is not given its due space in statistical courses. The...

I always found the decision of giving money to charities a difficult one because of so many charities and the different things they do. Firs...

I was reading this news article about causes of bird death that are related to humans and found interesting that cats is ranked at the top,...

The article "Bus, Bikes and Random Journeys: Crowdsourcing and distribution in Ivory Coast" in the last issue of Significance cau...

Gibbs Sampler is an algorithm used to generate marginal distribution from the conditional ones. It is a special case of the Metropolis-Hasti...

The Simpson's paradox, which names the phenomenon where the association between two variable change direction when conditional on a thir...

If you need a break from the statistical books with lots of math I recommend the book The Lady Tasting Tea , by David Salsburg. The book i...

I just read this article , where the seduction of money (and maybe other things?) led a highly regarded researcher on Alzheimer to get invol...

I do not consider myself that old, but it amazes me when I think of the difference between how Bayesian statistic was seen in the early 2000...

My statistical training was focused on classical frequentist inference, but soon after I got to the real world of statistics I realized that...

In the JSM 2013 I participated in a round table about teaching causal inference, where I had the privilege of meeting Judea Pearl. The reaso...

One of this days I heard in the CBC radio about a new research that supposedly found evidences that skipping breakfast is linked with Corona...

These days I got myself involved in a problem where power calculation had to be done for repeated measure design with binary endpoint, invol...

I was surprised when a colleague asked me for a opinion on a revision of a paper mentioning they should present Standard Deviation instead o...

Another paper in the most recent The American Statistician shows hot to use something they call Triangle Plot to visualize some aspects of l...

A third paper from The American Statistician compares nonidentifiability in the context of Bayesian inference and Maximum Likelihood Infere...

A paper that appeared in the last edition of The American Statistician discuss the construction of confidence intervals for functions of pa...

I find it useful to write about texts that I read since that usually helps the understanding and recording of the content into my brain (whi...

The interpretation of Statistical Test is perhaps one of the most misunderstood things considering the more routine statistical applications...

There is here a very interesting paper that talks about using more Randomized Controlled Trials before making decisions on policies. The pap...

A often overlooked thing in statistical analysis is the meaningfulness of effect sizes. Usually when comparing means or proportions we do a ...

An interesting blog that reports on flawed papers that are retracted from journals. I wonder what is the proportion of published bad scienc...

Here is an interesting article about the surveys in US and whether or not the respondents should be payed. Most of the time respondents ar...

I want to comment quickly on an interesting paper published by The American Statistician journal in 2001 about observed power. Observed p...

A few weeks ago I read in the Newsweek magazine an article about screening tests and others medical procedures that is quite interesting. Th...