Wechsler-Bellevue Intelligence Scale
The Wechsler-Bellevue tests were innovative in the 1930s because they (1) gathered tasks created for nonclinical purposes for administration as a "clinical test battery", (2) used the point scale concept instead of the age scale, and (3) included a non-verbal performance scale.
Read more about this topic: Wechsler Adult Intelligence Scale
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