American adults' vocabulary is stagnant since 1974, despite increasing #education.
No Flynn effect for vocabulary, apparently. #psychology
https://doi.org/10.1016/j.intell.2019.101377 …
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like any multidimensional comparison, did they check for measurement invariance over time? That test was composed from Thurstone's 1939 vocab test. Some items might be...superannuated.
Vocabulary invariance fails to extreme degrees. https://www.ncbi.nlm.nih.gov/m/pubmed/25402336/ …
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Took some digging but, no, they did not test MI. Although they point out that another study found, in fact, that MI was violated for this test. When you get partial invariance, the latent scores act very different from the raw scores. http://www.iapsych.com/iqmr/fe/LinkedDocuments/beaujean2010.pdf …pic.twitter.com/5sLzxQMVcB
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Who needs words when you have memes and emojis?pic.twitter.com/fkZPIOBMuA
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