3 6 
EMPLOYMENT PSYCHOLOGY 
No doubt it would have been possible to devise or 
select tests which would have been more applicable to 
the work of gauging. However, this particular type of 
gauging was only a temporary process and was almost 
completed at the time. It was therefore considered inad 
visable to go further in this direction. 
Besides the work of inspecting shells which has just 
been described and for which significant tests were found, 
there was a large amount of inspection differing from the 
work described only in respect to the size and shape of 
the object inspected. With regard to the fundamental 
qualifications required to do the work, there was almost 
complete identity. It would have been very valuable if 
the tests found applicable to the work of shell inspection 
should also be applicable to these other kinds of inspect- 
However, it was not permissible at this early stage 
ion. 
of the experiment to assume that tests found significant 
for one kind of work would be as significant for another 
kind, much as the two kinds resembled each other to the 
ordinary observation. Therefore, in order to avoid all 
uncertainty and guesswork, it was decided to give the 
three tests (exclusive of the eye test) which had been 
found most significant, to representative groups of inspec 
tors for other kinds of work. This was done in the same 
way in which the first tests were given. Twenty-eight 
cartridge inspectors, thirty paper shot shell inspectors, 
and ten bullet inspectors were examined. The results 
are given in the table of correlations on page 37. 
From these figures it can be seen that the correlations 
for the cartridge and bullet inspectors are almost but not 
quite as high as those found for shell inspectors. The dif 
ference was due in part to the fact that when the later 
tests were given, about four-fifths of the girls had beem