抄録
A new way of validity test was proposed to test the prescriptions for effective
supervision as specified in Situational Leadership Theory (Hersey & Blanchard,
1977). The theory has received little empirical support and has been criticized
on theoretical grounds. Moreover, past validity tests of the theory may be biased
in terms of methodological processes. To address the issue, an omnibus test
by using the cosign curve was proposed. Applying the test to data from 1195
salespeople across 374 stores working for a large Japanese apparel company
showed no support for the theory. With the help of the test, the author
additionally explored the modified assumptions of the theory that follower
maturity moderates the relationship of leader task and relationship behaviors
with indicants of follower performance.
