Personality Profile

Reliability is the consistency of your measurement, or the degree to which an instrument measures the same way each time it is used under the same condition with the same subjects. In short, it is the repeatability of your measurement. Validity is the strength of our conclusions, inferences or propositions. More formally, Cook and Campbell (1979) define it as the "best available approximation to the truth or falsity of a given inference, proposition or conclusion." In short, were we right? The real difference between reliability and validity is mostly a matter of definition. Reliability estimates the consistency of your measurement, or more simply the degree to which an instrument measures the same way each time it is used in under the same conditions with the same subjects. Validity, on the other hand, involves the degree to which you are measuring what you are supposed to, more simply, the accuracy of your measurement. It is my belief that validity is more important than reliability because if an instrument does not accurately measure what it is supposed to, there is no reason to use it even if it measures consistently (reliably).
Jung Typology: This questionnaire was highly influenced by Myers Briggs type indicator which is a psychometric questionnaire designed to measure how people perceive the world and make decisions. This assessment has been called the world’s most widely used personality assessment because it is used as many as two million times a year. Studies have shown that this method has a test-retest validity which means that it was given to the same group of people on two different occasions and the results were the same. Critics have claimed that this particular instrument “lacks convincing validity data”, (Wood, 2004) while other studies have also found the statistical validity and reliability to be low. In terms of my own personality, I would see some accuracy in my results for this assessment. The first dichotomy says that I was moderately