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Individual differences |
Methods | Statistics | Clinical | Educational | Industrial | Professional items | World psychology |
The Processing Speed Index (PSI) was first introduced on the Wechsler Intelligence Scale, Third Edition (WISC-III; D. Wechsler, 1991), and little is known about its clinical significance. It may be viewed as a measure of cognitive processing speed
It is constructed from two subtests:
- Main article: Interpreting WAIS-III subtests: Processing Speed Index