Cohort Design Strengths & Weaknesses

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Questions and Answers

Which of the following is NOT one of Hill's criteria for assessing causation?

  • Temporal Relationship
  • Biological Plausibility
  • Consistency of Association
  • Strength of Intuition (correct)

According to Hill's criteria, which factor must always precede the occurrence of a disease if it is believed to cause that disease?

  • Strength of Association
  • Biological Plausibility
  • Temporal Relationship (correct)
  • Dose-Response Relationship

What is the purpose of Hill's criteria in epidemiological research?

  • To establish correlation without assessing causation
  • To study the genetic factors associated with diseases
  • To identify study designs offering strongest evidence (correct)
  • To assess the financial implications of a disease

In the context of Hill's criteria, what does 'Dose-Response Relationship' refer to?

<p>The increase or decrease in the risk or severity of a disease with change in exposure level (C)</p> Signup and view all the answers

Which of the following is NOT one of Hill's criteria for assessing causation?

<p>Frequency of Disease Occurrence (B)</p> Signup and view all the answers

What role does 'Strength of Association' play in Hill's criteria for assessing causation?

<p>It assesses the strength of the causal relationship between a factor and a disease (B)</p> Signup and view all the answers

In an experiment, which variable is varied or manipulated by the researcher?

<p>Independent variable (D)</p> Signup and view all the answers

In non-experimental research, which variable logically has some effect on a dependent variable?

<p>Independent variable (A)</p> Signup and view all the answers

What is the independent variable in the scenario 'There will be a statistically significant difference in graduation rates of at-risk high-school seniors'?

<p>Participation in study program (Y/N) (D)</p> Signup and view all the answers

What is the dependent variable in the scenario 'There will be a statistically significant difference in graduation rates of at-risk high-school seniors'?

<p>Graduation rates (C)</p> Signup and view all the answers

Which factor is considered a predictor for commitment to the position of resident assistant?

<p>All of the above (D)</p> Signup and view all the answers

What type of measurement scale uses attributes that are only named and can be ordered?

<p>Ordinal scale (D)</p> Signup and view all the answers

Which level of measurement has distance as meaningful and an absolute zero?

<p>Ratio (D)</p> Signup and view all the answers

What does reliability measure?

<p>Stability and repeatability (D)</p> Signup and view all the answers

'A measurement must be reliable to be valid.' What does this statement imply?

<p>'Reliable' measurements may not be valid. (A)</p> Signup and view all the answers

'Reliability is not a guarantee of validity.' What does this statement suggest?

<p>'Reliable' measurements may not be valid. (C)</p> Signup and view all the answers

'Respect for human dignity through 3 core principles' is associated with which aspect of ethics?

<p>'Belmont Report' (C)</p> Signup and view all the answers

'Treating people fairly, equitably' is related to which aspect of ethics?

<p>'Belmont Report' (A)</p> Signup and view all the answers

What is a potential weakness of the cohort design related to temporality?

<p>Difficulty in confirming that exposure precedes outcome (D)</p> Signup and view all the answers

Which factor limits the cohort design's ability to study rare outcomes?

<p>Limitation in studying rare outcomes (C)</p> Signup and view all the answers

What is a key strength of the case-control study design in terms of exposure information?

<p>Includes a control group to limit bias (C)</p> Signup and view all the answers

What is a potential weakness of the case-control study related to temporality?

<p>Uncertainty about temporality (A)</p> Signup and view all the answers

What is a potential weakness of the cross-sectional/observational design in terms of exposure information?

<p>Difficulty in obtaining accurate exposure information (C)</p> Signup and view all the answers

Which attribute limits the cross-sectional/observational design's ability to confirm temporality?

<p>'No temporality' due to simultaneous measurement of outcome and exposure (C)</p> Signup and view all the answers

What is a common type of bias related to publication in quantitative research studies?

<p>Publication bias (not published) (D)</p> Signup and view all the answers

What is essential for reducing bias related to measurement in quantitative research studies?

<p>Validated &amp; reliable instruments for the study population (B)</p> Signup and view all the answers

What is confounding in the context of quantitative research studies?

<p>An alternative explanation of findings when a factor is related to both the exposure and outcome (D)</p> Signup and view all the answers

What is an independent variable in quantitative research studies?

<p>The presumed cause (A)</p> Signup and view all the answers

What is a dependent variable in quantitative research studies?

<p>The presumed effect (B)</p> Signup and view all the answers

What type of study design would be most appropriate for evaluating the effectiveness of prevention and treatment interventions?

<p>RCTs (Randomized Controlled Trials) (A)</p> Signup and view all the answers

Which criteria for establishing causality refers to the increasing amount of exposure increasing the amount of response?

<p>Dose-Response Relationship (A)</p> Signup and view all the answers

What does the term 'Coherence' refer to in Hill's criteria for establishing causation?

<p>Compatibility with existing theory and knowledge (B)</p> Signup and view all the answers

In epidemiological research, why is Randomized Controlled Trial (RCT) considered the most rigorous quantitative study design?

<p>Random allocation ensures similarity between groups (A)</p> Signup and view all the answers

What does the term 'Specificity' refer to in Hill's criteria for establishing causation?

<p>Presence of a single cause producing a specific effect (A)</p> Signup and view all the answers

Why might Randomization not always be possible in a study using the RCT design?

<p>To address ethical and feasibility issues (C)</p> Signup and view all the answers

Which feature makes Cohort Analytic Design potentially less costly and/or more feasible than a Randomized Controlled Trial (RCT)?

<p>Non-random allocation of participants (D)</p> Signup and view all the answers

In which study design are participants followed forward in time from exposure to outcome, similar to Randomized Controlled Trials (RCTs)?

<p>Cohort Analytic Study (A)</p> Signup and view all the answers

Which criterion for establishing causality focuses on finding a consistent relationship between a factor and outcome across different studies with different populations?

<p>Consistency of Association (B)</p> Signup and view all the answers

What does Hill's Criteria refer to as the weakest of criteria for causation?

<p>Specificity (D)</p> Signup and view all the answers

What factor does 'Consistency of Association' focus on when establishing causality according to Hill's Criteria?

<p>'Strength of Association' (B)</p> Signup and view all the answers

What makes Cohort Analytic Study different from Randomized Controlled Trials (RCTs) in terms of participant allocation?

<p>Non-random allocation to control &amp; treatment groups (D)</p> Signup and view all the answers

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