Final answer:
True, Stogdill's later studies indicated that both personality traits and situational factors are important determinants of leadership, in line with other research that highlights the multifaceted nature of leadership.
Step-by-step explanation:
True, Stogdill's later studies argued that personality and situational factors were both determinants of leadership. This assertion is supported by the broader research in the field of social psychology and organizational behavior which highlights the complexity of leadership. It emphasizes that while personality traits are significant, the context or situation can play an equally crucial role in shaping leadership effectiveness. For example, the research of Eagly, Johannesen-Schmidt, & van Engen (2003) demonstrates that transformational leadership styles are generally more effective than transactional ones, but a blend of styles is commonly exhibited by individual leaders. Similarly, Kurt Lewin's work on leadership styles and group dynamics indicates the impact of different leadership approaches on team behavior and satisfaction.