The results are affected by including individuals on the lower end of the IQ spectrum, particularly those with cognitive impairments, which elevate the test-performance correlation, as IQ primarily assesses learning challenges.
Some acknowledgment should be given to those skeptical of IQ. After testing 150 software job candidates last week on an IQ test and coding exercise, the correlation between IQ and passing the coding exercise was a mere 0.1. Similar outcomes are documented in public studies.
The results are affected by including individuals on the lower end of the IQ spectrum, particularly those with cognitive impairments, which elevate the test-performance correlation, as IQ primarily assesses learning challenges.