Goal setting is one of the motivational techniques used in manufacturi
ng and service industries to improve the productivity of the workforce
, and previous studies have shown that goal setting can result in up t
o 20% increase in productivity. However, this technique has not been a
pplied to construction projects due to the inherent characteristics of
the construction industry and difficulties in implementing the techni
que at construction sites. To study the applicability of goal setting
in construction, three experiments were performed over a period of 14
months. In all three experiments, the groups with a goal outperformed
the groups without a goal. This increased performance is shown by high
er expected profits at each experimental site. Comparison of all three
experiments allows conclusions to be advanced that: (1) Goal setting
induced increased productivity of unionized groups with a goal; and (2
) short-term goals resulted in higher productivity than long-term goal
s.