If a thermometer indicated different amounts of kelvins each time it measured the temperature of something (assuming that the temperature of the object was not varying at all), then we would know that there is something wrong with it. In psychometrics, an IQ test’s reliability represents the consistency of a test to what extent a test is able to produce similar scores after each administration. ![]() Well, they are, and whether they are or not is something that can be studied and quantified psychometrically. ![]() All the most widely used IQ tests have a high proven degree of reliability and validity.īy “reliable” what the general public means is if the intelligence measurements produced by IQ tests are real or not. Indeed, reliability is a psychometric concept and can be calculated and quantified.
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