-lithograph tymbal
concave hog publication type
conceal intercede pudding virago
decemvirate interdict puddle virescent
decency interest pudgy virgin

By adding find the total number of "plus" marks on the applicant's
slip. Multiply this number by 280, and you will then have obtained
the applicant's absolute vocabulary.

An absolute vocabulary of twenty thousand words or over may be graded
as excellent; 17,500 to 20,000 words, good; 15,000 to 17,500, fair;
and below 15,000, poor.

You should not employ as train-dispatcher a person whose
time-reactions indicate a tendency to confuse associated ideas. The
associated ideas may be related in time, place or a variety of ways,
and the memory of one who has an inherent tendency to substitute
an associate for the thing itself is a treacherous instrument. The
tendency to confuse associated ideas can be measured by psychological
tests.

Your own knowledge of the work of the world will suggest other
employments besides that of train-dispatcher in which such a test
could be used in hiring men to the improvement of the service.

[Sidenote: _Crime-Detection by Psychological Tests_]

The employment of psychological tests in the detection of crime is
fast supplanting the brutalities of the "third degree."

Thus, for example, by the use of highly sensitive instruments we
are able to detect the quickened heart-beat, the shudder, and other
evidences of emotion not otherwise discernible, but due to the
deliberate presentation of the details and evidences of a crime.
Though the subject may not himself be aware of the slightest physical
expression of emotion, these signs of a disturbed mentality are
unerringly revealed by the delicate instruments of the psychologist.

[Sidenote: _The Factory Operative's Attention Power_]

In some factories the operative is called upon to simultaneously keep
watch over a large number of parts of a moving mechanism, and to note
and quickly correct a disturbance in any part. Eye and ear must have
a wide range, must be able to take account of a large number of
operations widely separated in space.

[Illustration: TESTING THE RANGE OF VISUAL ATTENTION. PRIVATE
LABORATORY, SOCIETY OF APPLIED PSYCHOLOGY]

For the scientific determination of the operative's range of visual
attention, the "disc tachistoscope," shown facing page 106, may be