Question 1

An IQ score below ________ may lead to a classification of intellectual disability.
A)100
B)90
C)80
D)70

Accepted Answer

According to the American Association on Intellectual and Developmental Disabilities, an IQ score below 70 is a crucial threshold in the diagnosis of intellectual disability.

Question 2

What did Terman's groundbreaking study of gifted children accomplish?
A)It put to rest the myths that existed about genius in the early part of the twentieth century.
B)It proved that gifted children and adults are more prone to mental illnesses or odd behaviour than other groups.
C)It demonstrated that they also have more than their share of failures.
D)It demonstrated that genius is the only factor that influences real success in life.

Accepted Answer

Terman's study challenged the prevalent myth that gifted individuals were inherently frail or socially maladjusted, and instead demonstrated that gifted individuals could lead successful and socially well-adjusted lives.

Question 3

The first true longitudinal study of the effects of giftedness on social success was conducted by ________.
A)Wechsler
B)Terman
C)Binet
D)Merrill

Accepted Answer

The first true longitudinal study of the effects of giftedness on social success was conducted by Lewis Terman, who followed the lives of over 1,500 children with IQs over 135 (the top 1% of the population) for over 70 years.

Question 4

Although those with high IQs are found across professional fields, which professional group tends to obtain the highest average IQs?
A)Social workers
B)Law enforcement officers
C)University professors
D)Plumbers

Accepted Answer

University professors tend to obtain the highest average IQs, according to research studies.

Question 5

Which classification of developmental delay affects most of the population classified in this fashion?
A)Mild
B)Moderate
C)Severe
D)Profound

Accepted Answer

Mild developmental delay affects the majority of those classified with developmental delay. It means the individual has a delay in one or two areas of development, but they are typically able to catch up with appropriate interventions and support. The other categories (moderate, severe, and profound) are less common and indicate more significant delays or disabilities.

Question 6

If intelligence is determined primarily by heredity, which pair should show the highest correlation between IQ scores?
A)Fraternal twins
B)Identical twins
C)Brothers and sisters
D)Parents and children

Accepted Answer

Identical twins have nearly identical genetic material, so if intelligence is primarily determined by heredity, they should have the highest correlation in IQ scores. Fraternal twins share only about 50% of their genetic material, while siblings and parents and children share even less.

Question 7

Based on your understanding of family, twin, and adoption studies, provide examples of findings that would support the claim that intelligence is chiefly genetically determined.

Accepted Answer

The answer of Based on your understanding of family, twin,...

Question 8

Who coined the phrase "nature and nurture"?
A)Alfred Binet
B)Sir Francis Galton
C)Charles Darwin
D)Thomas Bouchard

Accepted Answer

Sir Francis Galton coined the phrase "nature and nurture" in the context of discussing the influence of genetics and environment on human traits.

Question 9

Regarding bell curve assumptions, which of the following is true?
A)About 95 per cent of the population will achieve an IQ test score between 70 and 130.
B)About 75 per cent of the population will achieve an IQ test score above 130.
C)About 20 per cent of the population will achieve an IQ test score below 70.
D)About 20 per cent of the population will achieve an IQ test score above 150.

Accepted Answer

The bell curve assumption states that about 95% of the population will achieve an IQ test score between two standard deviations from the mean, which is approximately between 70 and 130. Option B is false as only about 2.5% of the population will score above 130. Option C is also false as only about 2.5% of the population will score below 70. Option D is false as only a very small percentage of the population will score above 150.

Question 10

Which of the following is true concerning "twin study" research findings?
A)Identical twins and fraternal twins share similarly high IQ correlations.
B)Fraternal twins have more similar IQ scores than identical twins.
C)Identical twins have more similar IQ scores than fraternal twins.
D)Identical twins raised together have less similar scores than identical twins raised apart.

Accepted Answer

Twin study research consistently shows that identical twins have more similar IQ scores than fraternal twins. This suggests a genetic component to intelligence, as identical twins share 100% of their genes while fraternal twins share only 50%. This pattern holds true even when twins are raised separately, indicating that genetic factors play a powerful role in determining intelligence.

Question 11

Which of the following individuals might be suffering from intellectual disability?
A)Camille, who has an IQ of 67 as a result of a motorcycle accident when she was 35
B)Ivan, who was assessed with an IQ of 62 when he was nine and lives with his mother now that he's an adult
C)Jess, who has an IQ of 68 and lives by herself
D)Arius, who has an IQ of 82 and holds down a job as a custodian

Accepted Answer

Individuals with an IQ below 70 are typically diagnosed with an intellectual disability. Ivan's IQ of 62 falls within this range, indicating that he is likely experiencing intellectual disability. Camille's accident resulted in her having a lower IQ, but it is not necessarily indicative of intellectual disability. Jess's IQ of 68 is close to the 70 threshold, but it is not low enough to definitively indicate an intellectual disability. Arius's IQ of 82 is within the average range and does not indicate an intellectual disability.

Question 12

The term "intellectual disability" is associated with IQ scores falling under ________.

Accepted Answer

The answer of The term "intellectual disability" is associated with...

Question 13

Which of the following is representative of Sir Francis Galton's perspective on the causes of IQ?
A)Galton believed that intelligence was determined 50 per cent by environment and 50 per cent by genes.
B)Galton placed a lot of stock in heredity and believed that genes significantly influenced IQ.
C)Galton was an environmentalist and believed that social factors significantly influenced IQ.
D)Galton believed that intelligence was a trait that changed significantly over time.

Accepted Answer

Sir Francis Galton was a strong believer in eugenics and regarded heredity as the primary determinant of intelligence. Therefore, he considered genes to significantly influence IQ, making option B the correct answer.

Question 14

The term "Terman's Termites" refers to ________.
A)a set of developmentally delayed students that Terman studied intensively
B)a group of Army soldiers who, on the basis of their IQ, were followed through their military career
C)a sample of gifted children who were studied and followed into adulthood
D)a group of individuals from the National Institute of Mental Health who are responsible for overseeing research on intelligence in children

Accepted Answer

Terman's Termites refers to a sample of gifted children who were studied and followed into adulthood by psychologist Lewis Terman. The study aimed to understand the development and life outcomes of highly intelligent individuals.

Question 15

Some experts have emphasised ________ as an essential criterion of intellectual disability, since the inability to protect one's self from scams and being taken advantage of is an important aspect of cognitive limitations.
A)gullibility
B)extraversion
C)victimality
D)neuroticism

Accepted Answer

Gullibility is the best choice as it refers to the tendency to believe or trust others too easily, which results in being easily deceived or tricked. It is an important aspect of cognitive limitations in individuals with intellectual disability, since they may not be able to identify and avoid scams and exploitation. Extraversion, victimality, and neuroticism are not directly related to the ability to protect oneself from scams and being taken advantage of.

Question 16

In order to qualify for membership in an organisation called Mensa, you would need to have an intelligence quotient that is in the top ________ per cent of the IQ range.
A).1
B).5
C)1
D)2

Accepted Answer

Mensa requires members to have an IQ in the top 2% of the population.

Question 17

Identical twins have IQ correlations around .7 to .8, whereas fraternal twins have IQ correlations of about .3 to .4. What do these correlations suggest?
A)Identical twins have very similar IQs while fraternal twins do not.
B)Both identical twins and fraternal twins have similar IQs.
C)Fraternal twins have very similar IQs while identical twins do not.
D)Neither identical twins nor fraternal twins have very similar IQs.

Accepted Answer

The correlations suggest that identical twins have more similar IQs than fraternal twins, as their correlation is higher.

Question 18

________ twin types are found to have the most similar IQs.

Accepted Answer

The answer of ________ twin types are found to have...

Question 19

Which of the following statements about heredity and intelligence is TRUE?
A)Similarities in intelligence between identical twins who were separated at birth and raised in different houses must be due to heredity.
B)Differences in intelligence between identical twins who were separated at birth and raised in different houses must be due to heredity.
C)Differences in intelligence between identical twins must be due to differences in their environments.
D)If identical twins are separated at birth and raised in different homes, yet still have similar intelligence scores, the similarity in their scores must be due to hereditary influences.

Accepted Answer

The answer of Which of the following statements about heredity...

Question 20

Which of these is an element of the formal definition of intellectual disability?
A)Inadequate adaptive functioning in a variety of areas
B)Evidence of brain damage
C)Slower than normal reflexes
D)Onset of deficits prior to age six

Accepted Answer

Intellectual disability is characterized by significant limitations in both intellectual functioning and adaptive behavior, which covers a range of everyday social and practical skills. The onset must occur during the developmental period, but not specifically before age six.

Quiz 9: Intelligence and Iq Testing

An IQ score below ________ may lead to a classification of intellectual disability.

What did Terman's groundbreaking study of gifted children accomplish?

The first true longitudinal study of the effects of giftedness on social success was conducted by ________.

Although those with high IQs are found across professional fields, which professional group tends to obtain the highest average IQs?

Which classification of developmental delay affects most of the population classified in this fashion?

If intelligence is determined primarily by heredity, which pair should show the highest correlation between IQ scores?

Based on your understanding of family, twin, and adoption studies, provide examples of findings that would support the claim that intelligence is chiefly genetically determined.

Who coined the phrase "nature and nurture"?

Regarding bell curve assumptions, which of the following is true?

Which of the following is true concerning "twin study" research findings?

Which of the following individuals might be suffering from intellectual disability?

The term "intellectual disability" is associated with IQ scores falling under ________.

Which of the following is representative of Sir Francis Galton's perspective on the causes of IQ?

The term "Terman's Termites" refers to ________.

Some experts have emphasised ________ as an essential criterion of intellectual disability, since the inability to protect one's self from scams and being taken advantage of is an important aspect of cognitive limitations.

In order to qualify for membership in an organisation called Mensa, you would need to have an intelligence quotient that is in the top ________ per cent of the IQ range.

Identical twins have IQ correlations around .7 to .8, whereas fraternal twins have IQ correlations of about .3 to .4. What do these correlations suggest?

________ twin types are found to have the most similar IQs.

Which of the following statements about heredity and intelligence is TRUE?

Which of these is an element of the formal definition of intellectual disability?