Lecture 9: Intelligence Testing

What is the Singular Model of intelligence?

Intelligence reflects a single ability.

What is the "g-factor?"

General (single) intelligence.

What is the Hierarchical Model of intelligence?

Intelligence reflects a global intelligence factor "g" and ability-specific factors (i.e., it blends singular and plural models).

What model of intelligence do most current intelligence tests follow?

Hierarchical Model

What is the WAIS-5?

Wechsler Adult Intelligence Scale (version 5), which is used to assess adult intelligence according to a hierarchical model

What are the five subscales on the WAIS-5?

Verbal Comprehension, Visual-Spatial, Fluid Reasoning, Working Memory, and Processing Speed

What does the Verbal Comprehension Index assess?

Verbal concept formation and verbal reasoning

What does the Visual-Spatial Processing Index assess?

Spatial processing and visual-motor integration

What does the Working Memory Index assess?

Capacity to store, transform, and recall incoming information in short-term memory

What does the Processing Speed Index assess?

Ability to rapidly and accurately process simple information

What are the five major components of intelligence that emerge in numerous studies?

Verbal Comprehension, Visual-Spatial Processing, Fluid Reasoning, Working Memory, and Processing Speed

What is the Full Scale IQ Score?

Average performance across four intelligence scales on WAIS-5

What is the General Ability Index?

Average performance across the Verbal Comprehension and Perceptual Reasoning (a combination of Visual-Spatial Processing and Fluid Reasoning) on WAIS-5

What is norm-referenced assessment?

An individual's score on a measure is scaled relative to scores in a comparison (normative) sample

How are IQ scores scaled on the WAIS-5?

An individual's score on the WAIS-5 is scaled relative to scores of same-age peers in a normative sample

What is the average score on the WAIS-5?

100

Is the standardization of the WAIS-5 high or low?

High

Are the internal consistency and test-retest reliability of the WAIS-5 high or low?

High

Is the utility of the WAIS-5 high or low?

High

Does the WAIS-5 predict initial grades in school or success after getting a job or both?

Only initial grades in school

What does the WAIS-5 predict about academic performance in college?

Academic performance in the first year of college

Does the WAIS-5 predict success after getting a job, whether someone gets a job, or both?

Only whether someone gets a job

What factors are related to IQ scores on the WAIS-5?

Educational background, cultural background, motivation, anxiety, socioeconomic status, and/or physical testing conditions

What type of validity is of particular concern for the WAIS-5?

Content validity

Characterize genetic influences on the WAIS-5.

Heritable and polygenic.

What environmental factors have an influence on IQ scores on the WAIS-5?

Environmental toxins, variables associated with low SES (socioeconomic status), and breast-feeding

Does the WAIS-5 assess a broad or narrow conceptualization of intelligence?

Narrow

True or False: The WAIS-5 assesses intelligence according to a singular model

FALSE

True or False: The Processing Speed Index assesses a person's capacity to store, transform, and recall incoming information in short-term memory.

FALSE

True or False: The Visual-Spatial Processing Index assesses spatial processing and visual-motor integration.

TRUE

True or False: The General Ability Index is average performance across the Verbal Comprehension and Visual-Spatial Processing scales on the WAIS-5.

TRUE