2o8 
EMPLOYMENT PSYCHOLOGY 
possess the necessary ability. This is due to the fact that 
they are not conscious of their ability, and lack that bit of 
extra energy which might enable them to put themselves 
to the test. In cases of this kind, the psychological exam 
iner is in a position to suggest to his subject that, beyond 
a doubt, he possesses the necessary ability for success. 
In several cases, the experimenter has suggested to a sub 
ject who did well in the tests but whose work was not so 
satisfactory that he could unquestionably make good 
if he only would. However, it was inadvisable to do this 
during the course of experiments which were being con 
ducted precisely with the view of finding the value of the 
tests upon which such a suggestion was based. It remains 
as an interesting field for experimentation for some one 
to discover to what extent the power of suggestion may 
neutralize or augment the natural differences between 
individuals as shown by tests. In the meanwhile, it 
seems safe to prophesy that the development of tests 
which make it possible to discover the innate and acquired 
faculties of individuals will at the same time provide a 
more scientific basis for the employment of the powerful 
stimulus of suggestion. And by accomplishing this, 
another great contribution will have been made to the 
process of selecting individuals who are adapted for their 
work both mentally and morally. 
SUMMARY 
The scope of psychological tests has been discussed 
largely from the standpoint of their limitations. It has 
been pointed out that the extent to which tests may be 
applied is determined by three conditions: (i) An un 
derstanding on the part of the psychologist of the work 
to which they are to be applied in order that he may