ch. 9.2 - wechsler scale & raven's matrices

The formulation of early intelligence tests assumed that intelligence continually increases

-            Intelligence scores stabilize around the age of 16

The Wechler Adult Intelligence Scale (WAIS)

The most commonly used intelligence test used on adolescents and adults

-            Deviation IQ: compares a person’s IQ with the average score for that group

-            Doesn’t use chronological age – uses average score for age

Deviation IQ

compares a person’s IQ with the average score for that group

Distribution of Scores (WAIS)

-            Standardized intelligence scores show a normal distribution

General ability index

can you solve the problem?

Cognitive proficiency index

how fast can you solve the problem

Raven’s Progressive Matrices

Intelligence test that emphasizes problems that are ‘intended’ not to be bound to a particular language or culture

-            Scores correlate with WAIS

ex of Raven’s Progressive Matrices

the blank box has to be 6!

Perceptual speed index

ex of verbal comprehension index

ex of perceptual reasoning index

ex of working memory index

what’s apart of general ability index?

verbal comprehension and perceptual reasoning index

what’s apart of cognitive proficiency index?

working memory and perceptual speed index