Final answer:
The HR function in question is Employee Relations, which is aligned with organizational psychology in Industrial and Organizational psychology, and the most predictive factor of job satisfaction is the work content.
Step-by-step explanation:
The HR function that handles attitude surveys, labor relations, and outplacement services is employee relations. This aspect of Human Resources focuses on maintaining healthy relationships between the employer and employees, which includes gauging employee satisfaction through surveys, managing collective bargaining and other aspects of labor relations, and assisting with outplacement, which is the process of helping former employees transition to new jobs. In Industrial and Organizational (I-O) psychology, it is organizational psychology that measures job satisfaction, looking at how employees assimilate into organizational culture and their relationship with the organization itself. Moreover, when discussing the most predictive factor of overall job satisfaction, research suggests that work content is most strongly predictive, over financial rewards, personality, and even autonomy in one's role.