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Multiple Choice
Why is it important to match case subjects and control subjects closely in a case-control study in Anatomy and Physiology?
A
To simplify the data analysis process.
B
To increase the sample size of the study.
C
To reduce the cost of conducting the study.
D
To ensure that the results are not influenced by confounding variables.
Verified step by step guidance
1
Understand the purpose of a case-control study: It is designed to compare subjects with a specific condition (cases) to those without the condition (controls) to identify factors that may contribute to the condition.
Recognize the role of confounding variables: These are external factors that can affect the outcome of the study, potentially leading to incorrect conclusions if not properly controlled.
Identify the importance of matching: By closely matching case subjects and control subjects on characteristics such as age, sex, and lifestyle, researchers can minimize the impact of confounding variables.
Acknowledge the goal of matching: The primary aim is to ensure that any differences observed between the case and control groups are more likely due to the condition being studied rather than other unrelated factors.
Conclude the significance: Proper matching enhances the validity and reliability of the study results, allowing for more accurate identification of potential risk factors or causes related to the condition under investigation.