Option a is not supported by research on industrial organizational psychology. Cognitive ability is more strongly correlated with performance in complex jobs.
Industrial-organizational psychology is a part of applied psychology. It studies human behavior in workplaces. It is also known as organizational psychology, occupational psychology, work, and organizational psychology in various countries.
An industrial organizational psychologist studies the behavior of employees and how it can be improved or what effect the training methods or feedback and management system has on the employees. Cognitive ability is specifically useful in understanding the ability of employees in doing a task but industrial-organizational psychology focuses more on the well-being of employees at the workplace.
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