One of the most frequently used tools to measure intelligence, which has been accepted to be measurable, is the Wechsler Intelligence Scales. The first of the scales which were prepared for three different age groups is “Wechsler Intelligence Scale for Children” the first form of which was brought forth by Wechsler in 1949. There are four revisions of this 1949 test. This study examines the changes the Wechsler Intelligence Scale for Children has undergone throughout this process, what kind of changes has taken place in its number and structure of sub-scales, the changes in the score types and scoring, and it also examines the techniques used in putting forth its psychometric qualities and the data related to the studies.