"Past Behaviour is a Predictor of Future Behaviour and Performance" .
Behavioural interviewing is based on the experience that the most accurate predictor of future performance is past performance in a similar situation. Some studies suggest that behavioural interviewing is 45% more likely than traditional interviewing to predict future job behaviour. The approach can be applied to any recruitment and selection process and is particularly valuable when recruiting customer facing staff, managers and team leaders where behaviour and approach is critical to business success.
The hiring manager must pre-determine the characteristics and behavioural traits required for the position they are trying to fill. The interviewer then design specific and pointed questions to establish which candidates possesses those traits. By asking simple questions e.g. "What would you do if ....?", it's easy for a candidate to anticipate what they think the interviewer wants to hear and to give that answer.
However if the behavioural interviewer asks a candidate "Tell me about a time when you ...." The candidate is required to describe an actual situation. By using probing questions the interviewer can then verify the story and learn more about the candidate actually happened.