Daniel is interested in studying how children's behavior changes when they grow up in high-risk environments. He enlists 500 children and their parents to take part in his research, and observes these children once a year for 20 years
Despite the fact that this research is very time consuming and expensive, it gives very good information about how the children age over time. This type of research is an example of a __________ study.
A) sequential
B) cross-sectional
C) longitudinal
D) continuous
Answer: C
Rationale: A longitudinal study follows the development of the same set of individuals through time. Studying one group for a longitudinal study can cost a lot of money and time, but avoids the issue of cohort effects, which are associated with cross-sectional research.
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Mariano has severe epilepsy. What would his doctors try first to stop the seizure activity?
A. Give him anti-epileptic drugs B. Remove the focus C. Remove his corpus callosum D. Prevent the seizure from rebounding between the hemispheres by using heavy sedatives
A 1975 Rand Corporation study showed that, unless an eyewitness was available and could provide a specific piece of information about the crime, the likelihood of solving the crime was
A. 10%. B. 20%. C. 40%. D. 60%.
What is the formal name of the hardening of the lens in vision associated with aging?
a. presbycusis b. presbyopia c. cataracts d. glaucoma