The 100% CI is a recommended stats and metascience site because they are over my head but look good to me, and they are funny. The article linked by Works in Progress is What's In a Correlation? by Julia Rohrer.
It’s a less helpful feature if one or even both variables have a unit that is actually interpretable. For example, researchers have calculated correlations between birth order position (first-born versus later-born) and personality traits. I personally don’t know what a standard deviation of birth order coded in such a manner means; “How many SDs is your birth order position above or below the mean?” is not a common smalltalk topic. But I can easily make sense of “On average, first borns score 0.2 SD higher on intelligence”, so a semi-standardized metric would probably be more helpful for communicative purposes. Likewise, I’ve seen people report correlations between personality variables and income, but I have no idea what to make of one SD of income.
In the essay you can also find out that there is a measure of life satisfaction related to attitudes toward sex doll ownership. You can infer from that, because I noticed, that you can be head researcher into topics like this with pretty grad students and associate professors as a career, at least if you work at Nottingham Trent University. Dr. Rohrer has fun discussing the limitations of research like this while using it to illustrate lessons about correlation.
It's not going on my sidebar, but it may make it to bsking's at Graph Paper Diaries.
No comments:
Post a Comment