Q: According to Stern’s formula, what is the IQ of a child with a mental age of 10 and a chronological age of 8?

$IQ = \frac{10}{8} \times 100 = 125$

Question 1

Which of the following best describes the fallacy of reification in the context of intelligence?

Accepted Answer

Assuming intelligence is a fixed, physical entity because it can be measured by tests.

Question 2

Francis Galton believed intelligence was primarily a byproduct of which of the following?

Accepted Answer

Sensory capacities such as visual acuity and response time.

Question 3

Which statistical technique did Charles Spearman use to support his theory of a general intelligence factor ($g$)?

Accepted Answer

Factor analysis

Question 4

A student is able to quickly learn how to solve a new type of puzzle they have never seen before. According to Cattell, which type of intelligence does this best illustrate?

Accepted Answer

Fluid intelligence

Question 5

Howard Gardner’s Theory of Multiple Intelligences suggests that:

Accepted Answer

People vary in their ability levels across different domains, which may operate independently.

Question 6

Which of the following is NOT a criterion Gardner used to identify a separate form of intelligence?

Accepted Answer

High correlation with other intelligences

Question 7

According to Stern’s formula, what is the IQ of a child with a mental age of 10 and a chronological age of 8?

Accepted Answer

$IQ = \frac{10}{8} 	imes 100 = 125$

Question 8

Which of the following best describes the Flynn Effect?

Accepted Answer

The observed rise in average IQ scores over time, likely due to environmental factors.

Question 9

A psychologist wants to know if their new IQ test predicts future academic success. Which type of validity should they assess?

Accepted Answer

Predictive validity

Question 10

Which of the following statements about the reliability of IQ scores is most accurate?

Accepted Answer

IQ scores are highly reliable in adulthood, with correlations around 0.95 over several years.

Question 11

Which of the following is a misuse of IQ testing historically seen in North America?

Accepted Answer

Using IQ tests to justify eugenics policies and restrict immigration.

Question 12

Which of the following is true regarding the relationship between brain size and intelligence across species?

Accepted Answer

Brain size is weakly but robustly associated with intelligence when corrected for body size.

Question 13

A researcher finds that monozygotic twins have an IQ correlation of 0.8, while dizygotic twins have a correlation of 0.4. What does this suggest about the heritability of intelligence?

Accepted Answer

Genetic factors play a significant role in intelligence.

Question 14

Which of the following is a key difference between fluid and crystallized intelligence?

Accepted Answer

Fluid intelligence tends to decrease after age 30, while crystallized intelligence increases throughout most of life.

Question 15

Which of the following is a limitation of Gardner’s Theory of Multiple Intelligences?

Accepted Answer

Many of the proposed intelligences are correlated, suggesting a general factor ($g$).

Question 16

Which of the following best illustrates Sternberg’s concept of practical intelligence?

Accepted Answer

A manager successfully resolves a workplace conflict using negotiation skills.

Question 17

If the mean IQ score is 100 and the standard deviation is 15, what percentage of the population falls within two standard deviations of the mean on the bell curve?

Accepted Answer

Approximately 95%

Question 18

Which of the following is NOT a characteristic of intellectual disability according to standard criteria?

Accepted Answer

IQ above 130

Question 19

Which of the following best explains why group heritability does NOT necessarily imply between-group heritability?

Accepted Answer

Environmental differences between groups can account for trait variability.

Question 20

A person is able to keep several pieces of information in mind while solving a complex math problem. Which cognitive ability is most closely related to this skill?

Accepted Answer

Working memory

Intelligence and IQ Testing: Concepts, Theories, and Measurement

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