Standford Binet and WAIS Intelligence tests

Intelligence Testing: Information-Processing Theories, Individual vs Group Tests, and Benchmark Measures

• Information-processing theories focus on how intelligence is processed, rather than what is processed.
• Intelligence tests can be administered individually or in groups.
• Individual tests are used in educational psychology to observe problem-solving, but require specialized training and time.
• Group tests are used for large numbers of participants and require less skill to administer.
• The Stanford-Binet (SB5) test and the Wechsler scales for adults and children are the most well-known individual tests of intelligence.
• The SB5 measures five factors of intelligence, including fluid reasoning, knowledge, quantitative reasoning, visual-spatial processing, and working memory.
• The SB5 test has high internal consistency and test-retest reliability, as well as criterion-related validity.
• The Wechsler Adult Intelligence Scale (WAIS-IV) measures four factors of intelligence: verbal comprehension, perceptual reasoning, working memory, and processing speed.
• The WAIS-IV has additional composite scores, including the General Ability Index (GAI) and the Cognitive Proficiency Index (CPI).
• The WAIS-IV has high internal consistency and validity through concurrent, convergent, and discriminant studies.
• Both the SB5 and WAIS-IV measure a mixture of crystalized and fluid intelligence.
• The SB5 is based on the Cattell-Horn-Carroll theory of intellectual abilities.