What an online IQ test can and cannot tell you, and how clinical tests such as the WAIS differ.
Onze artikelen zijn in het Engels geschreven.
The Wechsler Adult Intelligence Scale, now Pearson's WAIS-5 from 2024, is a one-to-one clinical IQ test. What changed from the WAIS-IV, what it costs, and why a free online WAIS quiz is not the real test.
The Stanford-Binet Intelligence Scales, Fifth Edition (Roid, 2003) is a one-to-one clinical IQ test with 10 subtests and five factors (PRO-ED). How it is given and scored, and why online quizzes differ.
Calculated from the WAIS-5's 0.97 reliability (2024), a clinical IQ score has a 95% range of about 5 points either side. Online tests vary, and most free quizzes publish no data.
Ongeveer 15 minuten voor 24 puzzels, met eerst een korte warming-up.
