The abilities,interest, attitudes, and personality characteristics of different people are generally adjudged on the basis of interactions with them but in order to be precise, accurate and sure psychologist use psychological tests.
A psychological test is a carefully selected sample of behaviour related to attributes such as intelligence , personally , preference, self -esteem etc. This sampled behaviour is used, in turn, to elicit the responses and make inferences about the psychological attributes of the people who have been tested like intelligence, interest, self -esteem etc.
Psychological test are not magical or even very mysterious. they are merely standard ways of generating samples of people's behaviour. however , assessments based on random observations of someone's behaviour. their special value lies in the fact that they are:
1. uniform 2. objective 3. interpret-able