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1-30 First

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1 Biostat 3rd test Quiz on 1-30 First, created by Abdulrahman Mohammad on 03/12/2024.
Abdulrahman Mohammad
Quiz by Abdulrahman Mohammad, updated 14 days ago
Abdulrahman Mohammad
Created by Abdulrahman Mohammad 14 days ago
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Resource summary

Question 1

Question
CS Select the definition of "Research":
Answer
  • A disciplined investigation driven by scientific principles to solve problems and foster the development of novel knowledge.
  • A methodical approach utilizing established scientific techniques to address specific challenges and contribute to the expansion of knowledge.
  • An organized process employing scientific methodologies to resolve issues and uncover innovative insights.
  • A structured effort leveraging scientific methods to tackle problems and generate transformative understanding.
  • structured investigation with the use of appropriate scientific methods aimed at solving a problem and creating new knowledge.

Question 2

Question
CS Name the first step of the Research process:
Answer
  • Collect the data
  • Literature review
  • State the aim and objectives of your study
  • Prepare research (study) design
  • Formulate your research problem

Question 3

Question
CM Select the types of research by application:
Answer
  • Pure(basic, fundamental)
  • applied
  • Quantitative
  • Qualitative

Question 4

Question
CM Select the types of research according to the process adopted to find an answer to research questions:
Answer
  • Pure
  • Applied
  • Quantitative
  • Qualitative

Question 5

Question
CS When the study results are considered “internally valid”?
Answer
  • when they apply to the sample that was actually untested
  • when they apply to the population the sample was taken from
  • when they apply to the sample the population was taken from
  • All of the above
  • when they apply to the sample that was actually tested

Question 6

Question
CS When the study results are considered “externally valid”?
Answer
  • when they apply to the sample the population was taken from
  • when they apply to the population the sample was taken from
  • when they apply to the sample that was actually tested
  • when they apply to the tested sample of the population of a specific country during a specific time frame

Question 7

Question
CS When the study results are considered generalizable?
Answer
  • if it can be applied only to africans
  • if it can be applied to specific populations
  • if it can be applied only to samples
  • if its only possible to be applied to the same population
  • if it can be applied to other populations

Question 8

Question
What do we mean by confounding?
Answer
  • A systematic bias
  • In a study of whether factor A is a cause of disease B, we say that a third factor, factor X, is a confounder
  • Factor X is a known risk factor for disease B.
  • Factor X is associated with factor A, but is not a result of factor A
  • Factor Xis associated of factor A, but is a result of factor A

Question 9

Question
CM What do we mean by recall bias?
Answer
  • It is a systematic error and occurs when participants in a study are systematically more or less likely to recall (report) information on exposure (risk factors) depending on their outcome status (disease)
  • Recall bias is present in cross-sectional, case sectional, case control
  • Recall bias is a factor present in cohort studies
  • Recall bias is common between studies related to analytics

Question 10

Question
CM For which observational study designs recall bias is a major problem?
Answer
  • Case-control
  • Case-Series
  • Cross-Sectional
  • Cohort
  • Clinical

Question 11

Question
11. CS For what observational study design recall bias can be avoided?
Answer
  • Case Series
  • Case Control
  • Cohort Study
  • Clinical Trial
  • Control trial

Question 12

Question
12. CM Case-series study design is classified as:
Answer
  • Observational
  • Descriptive
  • Analytical
  • Experimental

Question 13

Question
13. CM Cross-sectional study design is classified as:
Answer
  • Observational
  • Descriptive
  • Analytical
  • Experimental

Question 14

Question
14. CM Case-control study design is classified as
Answer
  • Observational
  • Analytical
  • Descriptive
  • Experimental

Question 15

Question
15. CM Cohort study design is classified as:
Answer
  • Observational
  • Analytic
  • Experimental
  • Descriptive

Question 16

Question
16. CM Clinical trial study design is classified as:
Answer
  • Experimental
  • Analytical
  • Observational
  • Descriptive

Question 17

Question
17. CM List the types of the observational study designs:
Answer
  • Case-Control
  • Case-Series
  • Cross-Sectional
  • Cohort Study
  • Clinical trial

Question 18

Question
18. CM List the types of descriptive study design:
Answer
  • Case-Series
  • Cross-Sectional
  • Cohort Study
  • Case-Control

Question 19

Question
19. CM List the types of the analytic study design
Answer
  • Case-Control
  • Cohort Study
  • Clinical trial without control
  • Clinical trial with control
  • Case-Series

Question 20

Question
20. CS Which type of study design is the best for a therapy question?
Answer
  • Case-Series
  • Case-Control
  • Clinical Trial
  • Cohort Study
  • Cross-Sectional

Question 21

Question
21. CS Which type of study design is the best for a diagnosis/screening question?
Answer
  • Case-Series
  • Cross-Sectional
  • Case-Control
  • Clinical trial

Question 22

Question
22. CS Which type of study design is the best for a prognosis question?
Answer
  • Case-series
  • Cross-Sectional
  • Cohort study
  • Case-Report

Question 23

Question
23. CM Which type of study design is the best for an occurrence question?
Answer
  • Cohort Study
  • Cross-Sectional
  • Case-Report
  • Case-Series
  • Case-Control

Question 24

Question
24. CM Which observational study design gives the best evidence about causality?
Answer
  • Meta-analysis
  • Clinical trials
  • Cohort Study
  • Case-Control
  • Case-Report

Question 25

Question
25. CS What does it mean "Incidence"?
Answer
  • Both old and new cases
  • Old cases of a disease
  • New cases of a disease
  • None of the above

Question 26

Question
26. CS "Incidence" of a disease can be estimated within which study design?
Answer
  • Case control
  • Case-Series
  • Cohort Study
  • Clinical trial

Question 27

Question
27. CS What does it mean "Prevalence"?
Answer
  • New cases only
  • Old cases only
  • Both old and new cases
  • All of the above

Question 28

Question
28. CS "Prevalence" of a disease can be estimated within which study design?
Answer
  • Case-Control
  • Case-Series
  • Cross-Sectional
  • Clinical trial with control

Question 29

Question
29. CM Choose the experimental study characteristics:
Answer
  • Involve an intervention
  • Includes clinical trials
  • Controlled environment
  • Observation of a group of people

Question 30

Question
30. CM Choose the cohort study characteristics:
Answer
  • Incidence study
  • Prospective
  • Longitudinal
  • Diagonal
  • Prevalence study
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