The courses of different majors in party schools are different, but they need psychology teachers and only focus on leadership psychology. Specializing in leadership psychology, such as leader's decision-making psychology, group psychology and leadership, personality psychology and knowledge and employment, interpersonal psychology and leadership, stress management and coping, emotional ability and adjustment, and mental health and adjustment of leading cadres. You might as well prepare from these aspects.
Ps: Party classes are thousands of miles away from Party schools. Totally different.