What significant development did Wechsler introduce in the IQ scoring system?
Understand the Problem
The question is asking about a significant contribution made by psychologist David Wechsler in the context of IQ scoring. It requires an understanding of different IQ scoring systems and how Wechsler's method differs from others.
Answer
Direct comparison of verbal and nonverbal intelligence in IQ scoring.
The significant development Wechsler introduced in the IQ scoring system was the possibility of directly comparing an individual's verbal and nonverbal intelligence, along with introducing subtest score profiles and producing three IQ scores instead of one. This marked a shift from a single global score to a more differentiated and detailed assessment.
Answer for screen readers
The significant development Wechsler introduced in the IQ scoring system was the possibility of directly comparing an individual's verbal and nonverbal intelligence, along with introducing subtest score profiles and producing three IQ scores instead of one. This marked a shift from a single global score to a more differentiated and detailed assessment.
More Information
Before Wechsler's innovation, traditional IQ tests primarily provided a single intelligence score. By introducing separate scores for verbal and nonverbal intelligence, Wechsler's system offered a more nuanced understanding of an individual's intellectual capabilities.
Tips
One common mistake is assuming that all intelligence measures are expressed as a single overall score, overlooking the detailed subtest scores Wechsler introduced.
Sources
- David Wechsler | Intelligence Testing, IQ & Cognitive Assessment - britannica.com
- Development of the WAIS-III: A Brief Overview, History, and... - epublications.marquette.edu
- Wechsler Adult Intelligence Scale (WAIS): Psychological Testing - mentalhealth.com
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