The relationship between hard-wired personality traits and job behaviors has long been established. Even before that, it was clear that cognitive abilities were absolutely tied to job performance in any kind of job. The challenge has been applying these facts to the serious employment issues in the world. When reasonably good data was available, it required special training or expert help to apply it. When it was applied, it was almost always limited to hiring decisions. The intrinsic power of the data was never realized.
Business depends upon the behavior of people. When a company hires employees, they are actually renting their behavior. In a coffee shop, they rent smiles and a friendly manner that welcomes customers. They rent consistency with the process of making cappuccino, so that every time it is ordered, the quality is the same. They rent an attention to details, so that the customers’ orders are charged correctly. If a job candidate cannot deliver any one of these job behaviors, they cannot perform that job successfully.
The importance of knowing what causes job behaviors reaches far beyond hiring decisions. Without that knowledge: