General Ability Test measures individual potential in the following three areas:
Numerical Ability
English Knowledge
Logical Ability
Not all abilities are essential for each job. For some jobs one attribute would be the most important factor and the other two would be of least importance, while for some other jobs two factors would be of more importance.
Say for example while selecting a Telephone Operator English will be of most importance followed by Logical Ability, while Numerical ability may not be important at all! In case of selecting an Accounts Professional, Numerical & Logical Ability will be of more importance than the English Ability.