14) The primary reason that confounding variables pose problems for researchers
ID: 3501777 • Letter: 1
Question
14) The primary reason that confounding variables pose problems for researchers is because they tend to
be difficult to measure.
vary along with one another.
be difficult to explain scientifically.
vary in magnitude.
15) The estimated heritability of 48 percent for neuroticism in the population supports the claim that
the variability in neuroticism is due partly to genetic variability in the population.
the population in general has a recessive gene for neuroticism.
those with the neurotic trait share a particular dominant allele.
the incidence of neuroticism is associated with that of another distinct trait.
16) To which pair of siblings would the term dizygotic apply?
A brother and sister born at the same time
Two brothers born several years apart
Two sisters originating from a single fertilized egg
A brother and sister born several years apart
17) Which is true of twins who are discordant for a certain trait?
Both of them have the trait, but in different degrees.
One of them has the trait and the other does not.
Neither of them has the trait.
Both of them have the trait in a similar degree.
18) Which factor is most closely associated with the eventual onset of schizophrenia?
Growing up in a big city
Excessive amounts of sleep
Habitual drug use
A diet low in carbohydrates
20) Which factor was identical for all of the Genain quadruplets?
The genetic makeup that contributed to the onset of schizophrenia
The ways in which they exhibited symptoms of schizophrenia
The age of onset of schizophrenia
The environmental factors that contributed to the onset of schizophrenia
Explanation / Answer
Answer 14. Difficult to measure
Answer 15. Those with neurotic trait share a particular dominant allele
Answer 16. A brother and sister born at the same time
Answer 17. One of them has a trait and the other does not
Answer 18. Habitual drug use
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