Abstract :
The adoption of machine accounting in an engineering works necessitated the addition, to the existing battery of psychological tests for the selection of staff, of reaction-time and hand-and-eye co-ordination tests. Two new instruments, consisting almost wholly of standard telephone components, are described, their operation sequences are given and reference is made to the accuracy of the reaction tester. The results of the practical tests with these instruments are shown and simply discussed. The instruments, simple to operate and both accurate and reliable, were adequate for their purpose, and it is suggested that they may have a wider application.
