124 
EMPLOYMENT PSYCHOLOGY 
is practiced and where the need for trained men is imper 
ative, it is all the more urgent that those to whom this 
training is given should be men who are able to assimi 
late it. 
The experiment upon which this chapter is based was 
performed in a shop designed to give a short course of 
intensive training to prospective machinists and machine- 
tool specialists. Three groups of men comprising thirty- 
five in all were tested. Five tests were given and three of 
these showed a consistent correlation with the rank of 
those tested. These three tests were the Stenquist me 
chanical assembling test (see Chapter VII), the cube 
test, and a form-board test based on test number 51 but 
much longer and more involved. The cube test consists 
of a three-inch cube, painted green on the outside. The 
cube is cut into twenty-seven one-inch cubes. The large 
cube is placed before the subject and he is told that it will 
be demolished into twenty-seven small cubes and that he 
must restore them so that the large cube looks exactly as 
it did before, viz., green on all sides with no wood color 
exposed. Each subject is allowed to do this twice. The 
more complex form-board test really consists of two 
form boards. On one board, the cut-outs are promiscu 
ously arranged, on the other they are arranged in a definite 
order; but the same cut-outs are used for both boards, 
the task being to place them from one board into the other. 
Incidentally, this solves the problem of always presenting 
the cut-outs to each subject in exactly the same position. 
These tests were given first to the twelve men composing 
the day shift. The members of this shift with one ex 
ception had been working from three to five weeks. All 
of them had begun as green hands. After the tests had 
been given, the chief instructor and foreman of the shop