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James Thompson's avatar

Thanks. very good. animations particularly helpful.

Interestingly, in the Armed Forces, if proper IQ tests are used, the successful applicants will show very diminished racial differences in ability.

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Sam Eskildsen's avatar

Very helpful.

"a fanciful and limited conception of how concurrent studies are conducted led to erroneous conclusions"

"The focal article’s conclusions and recommendations are based on flawed conceptual reasoning and empirically untested hypotheses"

".Neither Sackett et al. (2022) nor the focal article examined actual, real-world data contributing to meta-analyses to determine and appropriately address the degree of range restriction from concurrent studies... More perilously, they ignored USES data and Hunter’s analyses of those data which presented a standard deviation for each concurrent and predictive sample included in the GATB database that provided a reasonable empirical basis for range restriction corrections. Researchers should not knowingly discount practitioner data and knowingly report an underestimate of operational validity."

LOL. OMG.

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