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 inadvisable
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 inspectors
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 difference
was due in part to the fact that when the later
tests were given, about four-fifths of the girls had beem
