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<u>Experimental studies</u>
<u>Experimental studiesIn an experimental study, the investigator determines through a controlled process the exposure for each individual (clinical trial) or community (community trial), and then tracks the individuals or communities over time to detect the effects of the exposure. For example, in a clinical trial of a new vaccine, the investigator may randomly assign some of the participants to receive the new vaccine, while others receive a placebo shot. The investigator then tracks all participants, observes who gets the disease that the new vaccine is intended to prevent, and compares the two groups (new vaccine vs. placebo) to see whether the vaccine group has a lower rate of disease. Similarly, in a trial to prevent onset of diabetes among high-risk individuals, investigators</u><u>.</u><u> </u>
Answer:
convenience sampling can be very useful, and as the name suggests convenient. This can also lead to some problems though. If the group chosen is a group for a reason related to your research that could affect your findings. Given the example of students in a psych class, if your research is on physical activity levels in the student population, that could be totally fine to use as your sample because physical activity and psychology courses are not directly related. Conversely, if you were going to do research on intended major of first year college students, choosing just one course to pick from may skew your results (an overestimation of those interested in psych as a major)
Explanation:
The answer is C
folate contains different vitamins
10 percent of drivers are between the ages of 15-20
Answer:
Endocrine, Respiratory, Circulatory, Digestive, Skeletal, Muscular, Nervous, Urinary. Panther, Yes...assumedly.
Explanation: