Posts Tagged ‘ academia ’

Criticism 5 of NHST: p-Values Measure Effort, Not Truth

July 17, 2012
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Criticism 5 of NHST: p-Values Measure Effort, Not Truth

Introduction In the third installment of my series of criticisms of NHST, I focused on the notion that a p-value is nothing more than a one-dimensional representation of a two-dimensional space in which (1) the measured size of an effect and (2) the precision of this measurement have been combined in such a way that

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Criticism 4 of NHST: No Mechanism for Producing Substantive Cumulative Knowledge

May 18, 2012
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In this fourth part of my series of criticisms of NHST, I’m going to focus on broad

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Criticism 3 of NHST: Essential Information is Lost When Transforming 2D Data into a 1D Measure

May 14, 2012
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Criticism 3 of NHST: Essential Information is Lost When Transforming 2D Data into a 1D Measure

Introduction Continuing on with my series on the weaknesses of NHST, I’d like to focus on an issue that’s not specific to NHST, but rather one that’s relevant to all quantitative analysis: the destruction caused by an inappropriate reduction of dimensionality. In our case, we’ll be concerned with the loss of essential information caused by

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Criticism 2 of NHST: NHST Conflates Rare Events with Evidence Against the Null Hypothesis

May 12, 2012
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Introduction This is my second post in a series describing the weaknesses of the NHST paradigm. In the first post, I argued that NHST is a dangerous tool for a community of researchers because p-values cannot be interpreted properly without perfect knowledge of the research practices of other scientists — knowledge that we cannot hope

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Criticism 1 of NHST: Good Tools for Individual Researchers are not Good Tools for Research Communities

May 10, 2012
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Introduction Over my years as a graduate student, I have built up a long list of complaints about the use of Null Hypothesis Significance Testing (NHST) in the empirical sciences. In the next few weeks, I’m planning to publish a series of blog posts, each of which will articulate one specific weakness of NHST. The

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A sociologist converts from Stata to R

May 7, 2012
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Ph.D candidate in sociology Ethan Fosse just switched from Stata to doing 100% of his analysis with R. His reasons? If you want to do Bayesian analysis or graph modeled coefficients (or work with complex data structures more generally), then R is much easier than Stata due to the object-oriented programming environment. It's unbelievably liberating to be able to...

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Big Data statistics in the search for a cure for MS

April 26, 2012
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Multiple Sclerosis (MS) is a debilitating and complex disease with an unknown cause — and for which there is currently no cure. The SUNY Buffalo is home to one of the leading multiple sclerosis (MS) research centers in the world, and as reported in Healthcare IT News, the research team is using IBM Netezza and Revolution R Enterprise to...

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R’s continued growth in academia

April 13, 2012
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R’s continued growth in academia

Bob Muenchen has recently updated his report on the popularity of statistical software. With the updated analysis, we see that the R community remains as strong as ever: the number of contributed R packages continues its exponential growth rate, R maintains its dominance in online discussion, and has 20x the content of other statistics packages on social programming sites...

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Students: Help improve R with the Google Summer of Code

March 27, 2012
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The Google Summer of Code project provides funding for students to write and contribute code to open-source projects of interest to Google. And given that R is widely used at Google, it's certainly a project of significant interest. So for the fifth year running the R Project will mentor students as part of GSOC 2012 to develop packages and...

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Video: Using R in Academic Finance

March 13, 2012
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The slides and replay for Dr Sanjiv Das's webinar, Using R for Analyzing Loans, Portfolios and Risk: From Academic Theory to Financial Practice are now available. I've embedded the slides below: they tell a great story of how Das, after being mistaken for the then-CEO of Citibank (with whom he shares a name) was then led to research (using...

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