IQ = $$\frac{\text{Mental Age}}{\text{Chronological Age}} \times 100$$

Question 1

Which of the following statements best describes the relationship between brain volume and intelligence?

Accepted Answer

There is some correlation between brain volume and IQ, but correlation does not prove causation.

Question 2

Alice Lee's research in 1900 was significant because it demonstrated:

Accepted Answer

That there is no correlation between skull size and intelligence, challenging gender stereotypes.

Question 3

Which formula was originally used to calculate a child's intelligence quotient (IQ) according to Binet and Simon?

Accepted Answer

IQ = $$\frac{	ext{Mental Age}}{	ext{Chronological Age}} 	imes 100$$

Question 4

A child with an IQ of 130 is considered:

Accepted Answer

To be in the top 2% of the population, often considered gifted.

Question 5

Which of the following best illustrates the interaction between genetics and environment in determining intelligence?

Accepted Answer

Children with good genetic potential may fail to reach their intellectual capacity if deprived of proper nourishment and support.

Question 6

Which of the following is NOT measured by traditional IQ tests?

Accepted Answer

Emotional readiness and social skills

Question 7

The General Intelligence Factor ($$g) $$proposed by Charles Spearman refers to:

Accepted Answer

A single underlying construct that all intelligence test items measure.

Question 8

Which of the following statements about IQ test scores is accurate?

Accepted Answer

IQ scores are distributed in the population according to a normal distribution (bell curve).

Question 9

A child is diagnosed with intellectual disability (ID) if:

Accepted Answer

Their IQ is below 70 and they are unable to adapt to the demands of normal life.

Question 10

Which of the following is the most common known inherited cause of intellectual disability?

Accepted Answer

Fragile X syndrome

Question 11

A child with phenylketonuria (PKU) can avoid intellectual disability if:

Accepted Answer

Their diet is strictly controlled to eliminate foods containing phenylalanine.

Question 12

Which of the following is TRUE regarding autism spectrum disorder (ASD)?

Accepted Answer

ASD is a neurodevelopmental disorder characterized by social impairments, communication difficulties, and repetitive behaviors.

Question 13

Which of the following is a key early sign of autism spectrum disorder in infants?

Accepted Answer

No big smiles or joyful expressions by 6 months

Question 14

Which statement about the heritability of intelligence is most accurate?

Accepted Answer

Intelligence is highly heritable, with studies showing heritability estimates between 70% and 80%.

Question 15

Which of the following is NOT a cause of intellectual disability?

Accepted Answer

Excessive exposure to sunlight

Question 16

Which of the following best explains why IQ tests may show cultural bias?

Accepted Answer

Minorities score lower on IQ tests because they lack previous experience with Western culture, not due to lower intelligence.

Question 17

Which neurotransmitter is most implicated in the development and treatment of ADHD?

Accepted Answer

Dopamine

Question 18

A child with ADHD who is primarily inattentive is most likely to:

Accepted Answer

Have extreme difficulty focusing, finishing tasks, and following instructions.

Question 19

Which of the following statements about the diagnosis of ADHD is correct?

Accepted Answer

ADHD diagnosis is based on observations and subjective reports of behavior in multiple settings.

Question 20

Which of the following is a limitation of IQ tests discussed in the study materials?

Accepted Answer

IQ tests do not measure important traits such as perseverance, motivation, and emotional readiness.

Childhood Intelligence: Genetics, Environment, and Neurodevelopmental Disorders

Study Guide - Practice Questions