The data obtained via this process is then interlinked and integrated to form a rounded profile of the individual. It is an exhaustive process that examines and measures all aspects of an individual’s identity. The science of psychometrics forms the basis of psychological testing and assessment, which involves obtaining an objective and standardized measure of the behavior and personality of the individual test taker. Reliability and validity are key concepts in the field of psychometrics, which is the study of theories and techniques involved in psychological measurement or assessment.