Question 1

Individual differences in the ability to acquire knowledge, to think and reason effectively, and to deal adaptively with the environment is called:

Accepted Answer

Intelligence refers to the capacity to learn, reason, and adapt effectively to the environment, encompassing the abilities mentioned in the question.

Question 2

The mental age of 6 means:

Accepted Answer

Mental age refers to the level of intellectual functioning, which is typically associated with the average abilities of a person of a specific chronological age, in this case, a 6-year-old.

Question 3

Which of the following formulas was originally used by William Stern to determine a person's intelligence quotient?

Accepted Answer

William Stern originally proposed the formula IQ = (mental age/chronological age) x 100 to calculate a person's intelligence quotient.

Question 4

Unlike the older intelligence tests that used Stern's method for calculating the intelligence quotient, current intelligence tests provide an "IQ" score that:

Accepted Answer

Current intelligence tests provide an IQ score based on an individual's performance relative to the test scores of people of the same age, rather than using the ratio of mental age to chronological age.

Question 5

is a statistical technique that reduces a large number of measures to a smaller number of clusters, with variables within clusters being highly related with one another, but variables across clusters being much less so.

Accepted Answer

Factor analysis is a statistical technique used to reduce a large number of variables into fewer clusters or factors, with high correlation within clusters and low correlation across clusters.

Question 6

One of the reasons that William Stern's original formula for calculating IQ was abandoned was that:

Accepted Answer

William Stern's original IQ formula, which was the ratio of mental age to chronological age multiplied by 100, worked well for children but not for adults because mental age does not increase significantly in adulthood, making the ratio less meaningful.

Question 7

The rationale for Binet to develop his test was to:

Accepted Answer

Binet developed his test to identify children who might need special education by assessing their school-related abilities.

Question 8

Using Stern's intelligence quotient, if Susie is 6 years old and has a mental age of the average 9 year old, her IQ would be:

Accepted Answer

Stern's IQ formula is (Mental Age/Chronological Age) x 100. For Susie, (9/6) x 100 = 150.

Question 9

The following two assumptions: mental abilities develop with age and the rate of developmental change is relatively constant for a given individual, were assumptions
Made by _ _.

Accepted Answer

Alfred Binet made these assumptions in his work on intelligence testing, which led to the development of the first practical IQ test.

Question 10

The individual to adapt Binet's test for use in the United States was:

Accepted Answer

Lewis Terman adapted Binet's test for use in the United States, creating the Stanford-Binet Intelligence Scales.

Question 11

If a child has a mental age of 7 and a chronological age of 4, her IQ score would be:

Accepted Answer

IQ is calculated as (Mental Age/Chronological Age) x 100. Here, (7/4) x 100 = 175, which is above average.

Question 12

Margaret was so excited to share the great news with her friends! She had just taken the Wechsler Intelligence Test and scored a 100. Being a 'C' student, Margaret was thrilled to think that she had actually earned the perfect score of 100! Margaret's teacher informed her that:

Accepted Answer

The Wechsler Intelligence Test is a standardized test that measures intelligence. A score of 100 is the average performance, so Margaret's score is relative to others her age.

Question 13

This approach to the study of intelligence attempts to map the structure of intellect and to discover the kinds of mental competencies that underlie test performance.

Accepted Answer

The psychometric approach focuses on measuring and mapping the structure of intelligence through standardized tests to identify different mental competencies.

Question 14

Factor analysis is:

Accepted Answer

Factor analysis is a statistical method used to identify underlying relationships between variables, often used to determine the factors that contribute to individual differences in test performance.

Question 15

In contrast to when the test was first created, modern IQ tests provide a score that represents:

Accepted Answer

Modern IQ tests are designed to compare an individual's performance to the average performance of others in the same age group, rather than using a ratio of mental age to chronological age.

Question 16

Alfred Binet made which of the following assumptions when developing his intelligence measure?

Accepted Answer

Binet assumed that mental abilities develop with age and that the rate of this development is relatively constant across individuals.

Question 17

Jonathan is taking an intelligence test that measures both verbal and non-verbal abilities. Most likely the test he is doing was developed by:

Accepted Answer

David Wechsler developed intelligence tests that measure both verbal and non-verbal abilities, such as the Wechsler Adult Intelligence Scale (WAIS) and the Wechsler Intelligence Scale for Children (WISC).

Question 18

was one of the individuals to lay the foundation for later research of intelligence. He thought that intelligence was a function of "efficiency of the nervous
System" and therefore tried to measure intelligence with tests that, for example, assessed reaction and sensory acuity.

Accepted Answer

Francis Galton was a pioneer in studying human intelligence and believed it was linked to the efficiency of the nervous system, using tests like reaction time and sensory acuity to measure it.

Question 19

The person who first used the term "intelligence quotient" or IQ was:

Accepted Answer

William Stern introduced the term "intelligence quotient" (IQ) in 1912.

Question 20

Which of the following was one of the assumptions made by Alfred Binet in his research on intelligence?

Accepted Answer

The rate at which a person gains knowledge is an internal characteristic and remains relatively constant over time.

Quiz 10: Intelligence