Sign in Subscribe

Topic

Statistics

A collection of 112 issues

AFib: Apple Watch Did Not Increase Atrial Fibrillation Diagnoses

A new paper purportedly shows that the release of Apple Watch 2018 which supported ECG app did not cause an increase in AFib diagnoses (mean = −0.008). They make the claim based on 60M visits from and 1270 practices across 2 years. Here are some things to think about: 1.

Predicting Reliable Respondents

Setting aside concerns about sampling, the quality of survey responses on popular survey platforms is abysmal (see here and here). Both insincere and inattentive respondents are at issue. A common strategy for identifying inattentive respondents is to use attention checks. However, many of these attention checks stick out like sore

Interacting With Human Decisions

In sport, as in life, luck plays a role. For instance, in cricket, there is a toss at the start of the game. And the team that wins the toss wins the game 3% more often. The estimate of the advantage from winning the toss, however, is likely an underestimate

Lost Years: From Lost Lives to Life Lost

The mortality rate is puzzling to mortals. A better number is the expected number of years lost. (A yet better number would be quality-adjusted years lost.) To make it easier to calculate the expected years lost, Suriyan and I developed a Python package that uses the SSA actuarial data and

Feigning Competence: Checklists For Data Science

You may have heard that most published research is false (Ionnadis). But what you probably don’t know is that most corporate data science is also false. Gaurav Sood The returns on data science in most companies are likely sharply negative. There are a few reasons for that. First, as

Ruling Out Explanations

The paper (pdf) makes the case that the primary reason for electoral cycles in dissents is priming. The paper notes three competing explanations: 1) caseload composition, 2) panel composition, and 3) volume of caseloads. And it “rules them out” by regressing case type, panel composition, and caseload on quarters from