Do different intelligence tests measure the same g?
The most direct way to test this is to employ latent variable modeling (SEM/CFA) and correlate the general factors from different IQ batteries. Below I quote the abstracts from all…
Publication bias index by the author: a way to keep scientists honest?
https://twitter.com/KirkegaardEmil/status/551535440831201280 Would this work? Authors can reduce their publication bias measure by publishing new studies that are more honest (with regards to reporting, research practices or not making data up,…
The inconsistency of studies of gender differences in cognitive abilities: due to using different methods?
I read this study: Palejwala, M. H., & Fine, J. G. (2015). Gender differences in latent cognitive abilities in children aged 2 to 7. Intelligence, 48, 96-108. It reminded me…
Reanalysis of Josefsson et al (2014)’s meta-analysis of exercise as treatment for depression
A link on Reddit claimed that exercise could be an effective treatment for depression. I felt it necessary to comment that: Exercise does not have a causal effect on depression…
Correlations and likert scales: What is the bias?
A person on ResearchGate asked the following question: How can I correlate ordinal variables (attitude Likert scale) with continuous ratio data (years of experience)? Currently, I am working on my…
Learning – theory and practice
This is a rewritten version of this old post. Motive Most people want to learn stuff. Some people prioritize learning higher than other people. But what is true for all…
Copying WordPress installations with phpmyadmin
So this should be fairly easy according to various guides, but it is not. The goal is to create a test installation of Wordpress on the server, so we can…
Workgroup: Doing Bayesian Data Analysis: A Tutorial Introduction with R and BUGS
I started a workgroup for going thru the Doing Bayesian Data Analysis: A Tutorial Introduction with R and BUGS book. See thread on forum.
Review: Misbehaving Science: Controversy and the Development of Behavior Genetics (Aaron Panofsky)
https://www.goodreads.com/book/show/18526647-misbehaving-science libgen.org/book/index.php?md5=ac86923b7bf1ed0639abf0e1c22810f8 The book is a sociologist trying to interpret the history of behavior genetics into sociology theories. I didn't pay much attention to their theorizing, being familiar with that…
Review: Reassembling the Social: An Introduction to Actor-Network-Theory (Bruno Latour)
https://www.goodreads.com/book/show/134567.Reassembling_the_Social http://gen.lib.rus.ec/search.php?req=Reassembling+the+Social&open=0&view=simple&column=def This is quite possibly the worst non-amateur book I've ever read. My notes to this book are so many that in the latter parts of the book, I…
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