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Questions and Answers
Why is it important to consider factors like illness severity and age when assigning groups in a study?
Why is it important to consider factors like illness severity and age when assigning groups in a study?
What is the benefit of using homogenous groups in a study?
What is the benefit of using homogenous groups in a study?
In a trial, what is an essential characteristic of the intervention being compared?
In a trial, what is an essential characteristic of the intervention being compared?
What should outcome measures in a study ideally be?
What should outcome measures in a study ideally be?
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What is a common problem encountered when measuring study outcomes?
What is a common problem encountered when measuring study outcomes?
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Why should losses in study participants ideally be similar for both the intervention and control groups?
Why should losses in study participants ideally be similar for both the intervention and control groups?
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What is a rule of thumb regarding the proportion of lost study participants in a trial?
What is a rule of thumb regarding the proportion of lost study participants in a trial?
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What is the goal of Phase III of clinical trials?
What is the goal of Phase III of clinical trials?
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Which term describes how well a diagnostic test is positive in individuals who have the disease?
Which term describes how well a diagnostic test is positive in individuals who have the disease?
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What is the focus of Phase IV of clinical trials?
What is the focus of Phase IV of clinical trials?
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Which term describes how reliable a test result is when it indicates that a disease is present?
Which term describes how reliable a test result is when it indicates that a disease is present?
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What does specificity measure in a diagnostic test?
What does specificity measure in a diagnostic test?
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During which phase of a clinical trial is random assignment most commonly used?
During which phase of a clinical trial is random assignment most commonly used?
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What is the primary focus of Phase I of clinical trials?
What is the primary focus of Phase I of clinical trials?
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In clinical trials, what does Phase II primarily aim to evaluate?
In clinical trials, what does Phase II primarily aim to evaluate?
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Which metric indicates the reliability of a test result when it shows that a disease is not present?
Which metric indicates the reliability of a test result when it shows that a disease is not present?
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What is the primary purpose of critical appraisals in systematic reviews?
What is the primary purpose of critical appraisals in systematic reviews?
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In a randomized controlled trial, what is the primary reason for randomization?
In a randomized controlled trial, what is the primary reason for randomization?
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What is the main difference between a cohort study and a case-control study?
What is the main difference between a cohort study and a case-control study?
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In a well-designed study, what is the primary purpose of inclusion and exclusion criteria?
In a well-designed study, what is the primary purpose of inclusion and exclusion criteria?
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What is the key characteristic of a systematic review?
What is the key characteristic of a systematic review?
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What is the primary advantage of using homogeneous groups in a study?
What is the primary advantage of using homogeneous groups in a study?
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What is the main purpose of comparison groups in a study?
What is the main purpose of comparison groups in a study?
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What is the primary purpose of blinding in a clinical study?
What is the primary purpose of blinding in a clinical study?
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Which of the following outcome measures indicates the proportion of individuals who need to be treated in order to prevent one additional adverse outcome?
Which of the following outcome measures indicates the proportion of individuals who need to be treated in order to prevent one additional adverse outcome?
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Why is it important to have homogeneous groups in a study?
Why is it important to have homogeneous groups in a study?
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Which research method involves observing people without directly interacting with them?
Which research method involves observing people without directly interacting with them?
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What is a 'confounder' in a study?
What is a 'confounder' in a study?
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What is the main advantage of using randomization in a study?
What is the main advantage of using randomization in a study?
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What is the primary goal of an iterative approach in research?
What is the primary goal of an iterative approach in research?
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What is the primary purpose of randomization in a randomized controlled trial?
What is the primary purpose of randomization in a randomized controlled trial?
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Which type of study design involves following research participants over a period of time?
Which type of study design involves following research participants over a period of time?
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What is a characteristic of a cross-sectional study?
What is a characteristic of a cross-sectional study?
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What is the primary difference between the two groups in a case-control study?
What is the primary difference between the two groups in a case-control study?
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What is the purpose of having homogeneous groups in a study?
What is the purpose of having homogeneous groups in a study?
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What is a key feature of a randomized controlled trial in terms of intervention comparison?
What is a key feature of a randomized controlled trial in terms of intervention comparison?
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What is the purpose of an intervention in a study?
What is the purpose of an intervention in a study?
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