An Evaluation of Unit Replacement on Unit Cohesion and Individual Morale in the U. S. Army All-Volunteer Force

In 1981, the U.S. Army initiated a new personnel replacement system, called the Unit Replacement System, in selected units. The new training and assignment policy was aimed at improving the perceived lack of group cohesion and low level of morale in U.S. Army units. Survey data were collected from junior-ranking enlisted soldiers in both Individual Replace- ment (IR) and Unit Replacement (UR) units to assess the effects of UR on soldiers' perceptions about interpersonal relations and combat readiness. Surveys were administered during a Zyear period (1986-1988) in three waves 6 to 8 months apart. The purpose of this article is to report the initial findings of this evaluation based on the first three waves of survey data. Company mean scores on measures of cohesion and morale were significantly higher for UR units than for IR units at Time 1, even when controlling for individual soldier and unit characteristics. However, the higher UR-unit scores decreased over time. The only remaining statistical differen...