Most victims of _____ die of respiratory infections in their 20s
A) Tay-Sachs disease
B) cystic fibrosis
C) Turner syndrome
D) Klinefelter syndrome
B
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It has been reported that average scores on national exams such as the Scholastic Aptitude Test (SAT) have declined in recent years. Researchers interested in exploring this intensively interview students who just took the exam, took it last year, and took it five years ago. This method is __________.
A. longitudinal B. experimental C. correlational D. cross-sectional
Which teratogen would most likely result in a baby being born with a missing limb?
a. Thalidomide b. Alcohol c. Rubella d. Syphilis
Cohort effects are a potential problem in cross-sectional research designs.
Answer the following statement true (T) or false (F)
Stella has worked hard this semester both in school and at her job. She is studying while trying to work nearly 40 hours per week. Now, right before finals she has become sick with mononucleosis. Her suite mates, however, are all healthy. What is the likely reason for this?
A. It is likely that Stella was exposed at work and her suite mates were not around the source. B. It is likely that Stella’s suite mates did not catch it because Stella is not around them enough for them to be exposed. C. It is likely that Stella may have been more vulnerable to the virus because of her stress level. D. It is likely that Stella’s roommates are just not showing symptoms yet but still have the virus.