XVI 
THE SCOPE OF PSYCHOLOGICAL TESTS 
WITH SPECIAL REFERENCE TO THE SELECTION OF 
EXECUTIVES 
At the conclusion of the section on psychological tests, 
the question regarding the scope of such tests as applied 
to problems of employment naturally arises. This ques 
tion may be divided into two phases. First, over how 
great a variety of individuals and types of work may the 
use of tests be extended? Secondly, how much can tests 
tell us about an individual? The first question concerns 
the quantitative value of the tests. It raises the point 
as to the extent in classes of work and varieties of people 
to which tests can be successfully applied. The second 
question is concerned largely with the qualitative value 
of tests. It raises the point as to whether the information 
about an individual which tests afford is sufficiently com 
prehensive and reliable to form a basis for judging that 
individual. 
The first of these two questions has already been an 
swered, in part, in the preceding chapters. In the ex 
periments described it was seen that tests were success 
fully applied to inspectors, assemblers, machine operators, 
office clerks of various kinds, stenographers, computing- 
machine operators, time-study men, draftsmen, tool- 
makers and tool-maker apprentices. This is by no means 
a comprehensive list of kinds of work, but it is neverthe- 
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