(10) Epidemiologists identify a random sample of 20-year-olds and survey them on
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(10) Epidemiologists identify a random sample of 20-year-olds and survey them on nutritional habits. The epidemiologists track this group for the next 15 years and gather data about who develops targeted cancers. Epidemiologists statisticaly analyze the initial data and the later data, looking for relationships between exposure to risk factors and development of the targeted cancers. Which study design was used and how do you know this? What are the benefits and weaknesses of this type of study design? (10) Epidemiologists want to study whether a new type of short wave UVA-blocking sunscreen is more effective than regular long wave UVA-blocking sunscreen. Participants are randomly assigned into two groups with Group A receiving the short wave UVA-blocking sunscreen and Group B receiving the long wave UVA-blocking sunscreen. Participants are then tracked during the next two years and data is collected on the health of their skin. Which study design was used and how do you know this? What are the benefits and weaknesses of this type of study design?Explanation / Answer
10) Identifying a random sample of 20 year olds and survey them on nutritional habits is Case Series analysis as it studies the relationship between exposure to risk factors and development of the targeted cancers.The random sample of 20 year olds is being selected and is studied for the next 15 years, looking for relationship between exposure to risk factors and development of the targeted cancers.
Benefits of Case Series
Weakness of Case Series
10) Study whether a new type of short wave UVA-blocking sunscreen ismore effective than regular long wave UVA-blocking screen is Randomized Controlled Trial study. This is because the participants are randomly assigned into two groups with Group A receiving the short wave UVA-blocking sunscreen and Group B receiving the long wave UVA-blocking sunscreen.
Benefits of Randomized Controlled Trial Study
Weaknesses of Randomized Controlled TrialStudy
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