THE VESTIBULE SCHOOL 289 
indicated by the psychological tests the ability of new 
employees. 
2. Provides an opportunity to observe the moral 
qualities of new workers. 
3. Provides the mechanism for bringing unskilled or 
untrained workers to the desired point of efficiency with 
the least possible delay. 
4. Makes it possible to assign people more carefully to 
the work for which they are best fitted. 
5. Permits the new employee to exercise a certain 
amount of choice in his work. 
6. Makes it possible to break in new workers by easy 
stages instead of with a sudden plunge. 
7. Promotes a better selection of employees by de 
creasing the necessity of hiring only for the immediate 
needs of the moment. 
8. Makes it possible to pay and to rank workers on the 
basis of actual work done under controlled conditions. 
9. Stimulates the development of new employees by 
making possible competitive trials. 
10. Provides a center in which old employees can be 
renovated and unsatisfactory employees eliminated. That 
is, it can act both as an outlet and an inlet. 
11. Acts as a shock absorber to prevent the accumula 
tion of too much help in one department and the lack of 
help in another. 
12. Tends to promote standard practices in all parts of 
the shop and plant, and provides an excellent avenue for 
the plans of the industrial engineer. 
13. By using actual work as a basis for its instructions, 
the vestibule school both reduces its cost and prepares 
the employee for the work to come. 
For the sake of clarity, it may be added that the vesti