Sounds like it was a high pass filter, and that IQ was a necessary but insufficient condition. Or they just had too many applicants.
For what it's worth, g-factor is correlated to many different cognitive abilities. A person's individual competency areas are highly correlated to other competency areas. For a job where cognitive ability is relevant, knowing the g-factor is predictive of job performance.
For what it's worth, g-factor is correlated to many different cognitive abilities. A person's individual competency areas are highly correlated to other competency areas. For a job where cognitive ability is relevant, knowing the g-factor is predictive of job performance.