Blog Archives

Guest post: PNAS, facebook and the ethics of online experimentation

July 4, 2014
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Guest post: PNAS, facebook and the ethics of online experimentation

This is a guest blog post by Gerry Markopoulos. I'm posting it because I think it is an important topic that deserves wider discussion.Recently, an article was published in the prestigious journal ‘Proceedings of the National Academy of Sciences’ (...

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Multicollinearity tutoral

November 11, 2013
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Multicollinearity tutoral

I just posted brief multicollinearity tutorial on my other blog (loosely based on the material from the Serious Stats book). You can read it here.Filed under: serious stats, stats advice Tagged: correlation and covariance, general linear model, messy d...

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Multicollinearity tutoral

November 11, 2013
By
Multicollinearity tutoral

I just posted brief multicollinearity tutorial on my other blog (loosely based on the material from the Serious Stats book). You can read it here.Filed under: serious stats, stats advice Tagged: correlation and covariance, general linear model, messy d...

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Multicollinearity and collinearity (in multiple regression) – a tutorial

November 9, 2013
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Multicollinearity and collinearity (in multiple regression) – a tutorial

This blog post was written for undergraduate research methods teaching. I have therefore tried to keep everything relatively simple and equation-free. The content is based loosely on more detailed material in my book Serious stats. What are collineari...

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A gentle introduction to learning R

October 22, 2013
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A gentle introduction to learning R

There are many good resources online for learning R. However, I recently discovered Try R from Code school – which is interactive, goes at a very gentle pace and also looks very pretty: http://tryr.codeschool.com/Filed under: serious stats Tagged...

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A gentle introduction to learning R

October 22, 2013
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A gentle introduction to learning R

There are many good resources online for learning R. However, I recently discovered Try R from Code school – which is interactive, goes at a very gentle pace and also looks very pretty: http://tryr.codeschool.com/Filed under: serious stats Tagged...

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Cronbach to the future

August 6, 2013
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Cronbach to the future

One fascinating thing about working in the area of psychological statistics is how hard it is to move people away from reliance on bad, inefficient or otherwise problematic methods. My own view - informed to some extent by the literature, by experience...

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Why faking data is bad …

June 21, 2013
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Why faking data is bad …

It never occurred to me until today to write a post about why faking data is bad. However, I noticed an interesting exchange on Andrew Gelman's blog (see the comments on this post about Marc Hauser). One commenter argued that it was not clear that Haus...

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Serious stats: using multilevel models to get accurate inferences for repeated measures ANOVA

June 13, 2013
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Serious stats: using multilevel models to get accurate inferences for repeated measures ANOVA

This article from my other blog may be of interest to readers of this blog: http://seriousstats.wordpress.com/2013/04/18/using-multilevel-models-to-get-accurate-inferences-for-repeated-measures-anova-designs/

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Neuroscience, statistical power and how to increase it

April 21, 2013
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Neuroscience, statistical power and how to increase it

There has been quite a bit of buzz recently about the Button et al. Nature Reviews Neuroscience paper on statistical power. Several similar reviews have been published in psychology and other disciplines and come to broadly the same conclusion - that m...

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