Emil O. W. Kirkegaard blog
In my previous paper, I examined whether a personal Jensen coefficient could predict GPA beyond the general factor (or just the normal summed score). I found this not to be the case for a Dutch university student sample (n ≈ 300). One thing I did find, however, was that the personal Jensen coefficient was correlate…
Continue ReadingGroup differences in cognitive scores have generally been found to be g-loaded, i.e. the differences are larger on the items/subtests that load more strongly on the general factor. This is generally called a Jensen effect, and its opposite an anti-Jensen effect. However this can cause linguistic trouble when dealing with (near)-zero correlations or when dealing…
Continue ReadingFound null results for a proposed metric (actually two). In the spirit of publishing failed ideas, I wrote this up. Abstract General intelligence (g) is known to predict grades at all educational levels. A Jensen coefficient is the correlation of subtests’ g-loadings with a vector of interest. I hypothesized that the personal Jensen coefficient from…
Continue ReadingJan te Nijenhuis, Birthe Jongeneel-Grimen and Emil O. W. Kirkegaard. Are Headstart gains on the g factor?: A meta-analysis. Intelligence. Volume 46, September–October 2014, Pages 209–215 If all goes well, it may be the only paper i publish in Intelligence. Primary author is a cool guy: http://www.uva.nl/over-de-uva/organisatie/medewerkers/content/n/i/j.tenijenhuis/j.te-nijenhuis.html The second author is his former…
Continue ReadingIt has been shown that training effects and the FLR effect are not g-loaded. Spitz in his discussion of the many types of compensatory education that has been tried, mentions that they were often suspected of teaching to the test specifically. This shud show up as non g-loaded gains. Unfortunately, the data are probably lost…
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