Trait-Based Perspectives of Leadership.
Zaccaro, S J. (2007) American Psychologist. Jan Vol 62(1) 6-16

The trait-based perspective of leadership has a long but checkered
history. Trait approaches dominated the initial decades of scientific
leadership research. Later, they were disdained for their inability to
offer clear distinctions between leaders and nonleaders and for their
failure to account for situational variance in leadership behavior.
Recently, driven by greater conceptual, methodological, and statistical
sophistication, such approaches have again risen to prominence.
However, their contributions are likely to remain limited unless
leadership researchers who adopt this perspective address several
fundamental issues. The author argues that combinations of traits and
attributes, integrated in conceptually meaningful ways, are more likely
to predict leadership than additive or independent contributions of
several single traits. Furthermore, a defining core of these dominant
leader trait patterns reflects a stable tendency to lead in different
ways across disparate organizational domains. Finally, the author
summarizes a multistage model that specifies some leader traits as
having more distal influences on leadership processes and performance,
whereas others have more proximal effects that are integrated with, and
influenced by, situational parameters. (PsycINFO Database Record (c)
2007 APA, all rights reserved)