Which of these is most likely to be studied by an i/o psychologist whose emphasis is on the subspecialty of organizational psychology?

I believe the answer is: Leadership

I/O psychologists stands for Industrial and organizational psychologists. They focus their study on implementing psychological technique to improve the overall perfornace of group members within an organization. This include things such as leadership skills, time management, and goal setting.

The answer is "selection".

Industrial/Organizational (I/O) psychology is both the investigation of behavior in authoritative and work settings and the utilization of the techniques, certainties, and standards of brain research to people and gatherings in hierarchical and work settings. I/O psychologists are flexible conduct researchers represent considerable authority in human conduct in the work environment. I/O psychologists perceive the relationship of people, associations, and society, and they perceive the effect of elements, for example, expanding government impacts, developing buyer mindfulness, ability deficiencies, and the changing idea of the workforce.