CHOICE OF WORKERS TO BE STUDIED 57 
should be kept strictly confidential. They should not be 
made available to employment interviewers or to supervisors 
who might attach unwarranted significance to them. It is 
standard practice in some factories such as those of the Gen- 
eral Electric Company, to tell an employee his score if he 
asks it, but to tell no one else without his permission. Only 
after validation of the test is complete, is use of it made 
in the employment office. 
The investigator has at this point chosen a number of 
workers representing different levels of vocational accom- 
plishment to serve as subjects for his study. He should go 
over the tentative list of abilities which is one result of his 
job analysis and make a further check of its correspondence 
with the criterion and with the subjects he has now chosen. 
When this has been done, he must consider the methods 
whereby these or other significant abilities may be measured 
in order to determine their relationship to the criterion of 
success. Our attention then turns to a consideration of the 
bases for choosing the measuring instruments whose relia- 
bility and value in forecasting success at the job are to be 
ascertained. 
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