Note: This quiz covers material learned in Chapters 9 and 10. Select the best answer for each of the
following questions.
Question 1
Question text
3
To say that the heritability of a trait is 70 per cent means that
Select one:
a. 30 per cent of a person’s expression of that trait is due to environmental factors.
b. 70 per cent of a person’s expression of that trait is due to heredity.
c. 70 per cent of the variability of that trait in a group is accounted for by genetic variation.
d. the correlation between identical twins should be approximately +0.70 for that trait.
Feedback
REF: p. 415
The correct answer is: 70 per cent of the variability of that trait in a group is accounted for by genetic
variation.
Question 2
Question text
3
Leo wants to become a fighter pilot, and he is asked to complete a test that is designed to determine
whether he has the interests and the values typically found in fighter pilots. What type of test would be
used in this case?
Select one:
a. aptitude test
b. non-standardized test
c. achievement test
, d. personality test
Feedback
REF: p. 396
The correct answer is: personality test
Question 3
Question text
3
Kira has been raised in an intellectually impoverished environment, with no access to books and very
few age-appropriate toys. What does the reaction range model predict for Kira?
Select one:
a. She will score near the bottom of her potential IQ range.
b. She will show a steady decrease in IQ score during early childhood and adolescence.
c. She will perform worse than the majority of her peers on standardized tests of intelligence.
d. She will have a narrower intellectual reaction range than children raised in more stimulating
environments.
Feedback
REF: p. 417
The correct answer is: She will score near the bottom of her potential IQ range.
Question 4
Question text
3
Jamal recently completed an intelligence test and was told that his IQ score was 135. How would Jamal
be categorized based on the standard practices in most school districts?
Select one:
a. He would not meet the criterion for giftedness unless he was also highly creative.
b. He would need to show superior potential in at least three other areas to be eligible for gifted
programs.
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