Strong decrease in predictive validity of IQ tests for work performance
![Image](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTwjTrgIDC468jdN8tJ8OWNXoCBNHLgkgFBsy7pihurD022yDBkfgHZvGFeNdDzjgzR2sIolCzZ52AzFTB2UXte3oZdGzYEFuz43pR_Evk_rZWa9JgY8dhdCMoRSZsFW9tlmx7D-38e88XTHR-1G7PvvXY57jnArwtoOU4tpxVYMkhE0uFMDhTnArExRg/w640-h320/Dramatische%20afname%20van%20de%20voorspellende%20waarde%20van%20algemene%20intelligentietests%20voor%20werkprestaties.png)
As a psychology student in the 1980s, I learned that researchers Schmidt and Hunter indicated that IQ tests were strongly predictive of job performance, with correlations ranging from 0.51 to 0.65. However, recent research by Steel and Fariborzi (2025) suggests that this correlation may have decreased to as low as 0.16.