Transracial adoption study: Stams et al, 2000
This is another relatively small international adoption study. 159 children were adopted in homes in the Netherlands from Sri Lanka, Korea and Colombia. Participants are described as: The present study…
Transracial adoption study: Lindblad et al, 2003
As Jason Malloy has mentioned, it is strange that in the race intelligence debates, people usually cite the same few studies over and over: Shortly after writing that post, I…
Spearman’s hypothesis on item-level data from Raven’s Standard Progressive Matrices: A replication and extension
Emil O. W. Kirkegaard1 Abstract Item-level data from Raven’s Standard Progressive Matrices was compiled for 12 diverse groups from previously published studies. Jensen’s method (method of correlated vectors) was used…
International differences in intelligence can be confusing: A commentary on Harrison et al (2015)
Abstract In this commentary I explain how mean differences between normal distributions give rise to different percentages of the populations being above or below a given threshold, depending on where…
How to integrate Winnower, blog posts and ResearchGate?
Abstract I argue that traditional scientific publication is extremely costly and that scientific publication must move towards more rapid publication practices. I discuss how this might be accomplished by integrating…
Opinions about nuclear energy and global warming, and wordsum intelligence
Abstract Using data from the ANES 2012 survey, I investigate the relationship between wordsum IQ estimates (unweighted sums, factor analytic and item-response theory scores) and opinions about nuclear energy and…
Review: The Righteous Mind: Why Good People are Divided by Politics and Religion (Jonathan Haidt)
https://www.goodreads.com/book/show/11324722-the-righteous-mind I had heard good things about this book, sort of. It has been cited a lot. Enough that I would be wiling to read it, given that the author…
Attitude towards nuclear energy and correlates: educational attainment, gender, age, self-rated knowledge, experience, etc.
Nuclear energy often gets bad press. However, journalists are mostly very leftist, scientifically ill-educated women, so perhaps they are not quite the right demographic to tell us about this issue.…
Automatic testing of all possible multiple regression models given a set of predictors
Abstract Researcher choice in reporting of regression models allow for questionable research practices. Here I present a function for R that reports all possible regression models given a set of…
Measuring scientific knowledge: can we use questions that are denied by the religious?
In reply to http://www.ljzigerell.com/?p=534 and his working paper here: http://www.ljzigerell.com/?p=2376 We are discussing his working paper over email, and I had some reservations about his factor analysis. I decided to…
- Go to the previous page
- 1
- …
- 94
- 95
- 96
- 97
- 98
- 99
- 100
- …
- 128
- Go to the next page