The prime aim of selection system in SSB is to explore the potential of a candidate, which is must for becoming an officer in armed forces. In order to be fair, the system consists of three different and independent techniques. Each technique grades and evaluates the qualities which are essential for defence services by allowing least time and under stressful condition, which is the practical requirement for an officer during emergencies like wars. These three are as follows:

• Psychological Test: These are carried out by specially trained psychologist in a given time frame.
• GTO’s Tests: These tests are carried out face to face on the ground in which the testing officer judges the qualities based on the performance shown by candidates on ground, under stress.
• Interviewing Officer’s Test: The President or Deputy President interviews the candidate. He evaluates the traits of personality of the candidate. The interviewing officer generally divides his method of interview into two parts. One is the generic test. Where the interviewer puts up the Routine questions. The other one is a situation based test.
  
  

All three tests are conducted independently.