Modern approach involves:

Direction - What has to be done and how to do it

Adaptation - Making a strategy, monitoring it, while also implementing it for performance on a task.

Criticism - Ability to critique own thoughts and actions.

Stanford-Binet = Focused on the ability to learn within an academic setting.

  • General overall ability

Weschler Scale = Each test yields a performance score, a verbal score and an overall score.

  • The Weschler Intelligence Scale for Children (WISC-III)
  • The Weschler Preschool and Primary Scale of Intelligence (WPPSI)
  • The Weschler Adult Intelligence Scale (WAIS-R)
  • He believed intelligence involves more than simply performance, and may include aspects of day- today living.

Scoring of Intelligence Test

IQ (Intelligence Quotient) = (Mental age (Performance age) Chronological Age (Actual age)) x


Problem = Originally focused on kids from schools, therefore when used on older populations it's pointless.

Solution = Standardised populations for different age groups, normative 1000's of subjects.

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